tree function ignores keys ending with /

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for bug reports and enhancements. For general usage questions,
please use the Consul Community Portal or the Consul mailing list:

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Please try to simplify the issue as much as possible and include all the
details to replicate it. The shorter and simpler the bug is to reproduce the
quicker it can be addressed. Thanks.

### Consul Template version

e04ca78

### Configuration

```hcl
consul {
address = "localhost:8500"
}

template {
contents = "{{ range $kv := tree \"/\" }}{{ $kv.Key }}={{ $kv.Value }}\n{{ end }}"
destination = "/tmp/out"
}
```

```sh
# consul kv put foo 1
# consul kv put foo/ 2
# consul kv put foo/bar 3
```

### Command

```shell
./consul-template -once -config consul-template.conf -log-level trace
```

### Debug output

```
2023-02-21T19:43:36.462-0500 [INFO] consul-template v0.30.0 ()
2023-02-21T19:43:36.462-0500 [INFO] (runner) creating new runner (dry: false, once: true)
2023-02-21T19:43:36.463-0500 [DEBUG] (watcher) adding vault.token
2023-02-21T19:43:36.463-0500 [TRACE] (watcher) vault.token starting
2023-02-21T19:43:36.463-0500 [TRACE] (view) vault.token starting fetch
2023-02-21T19:43:36.463-0500 [TRACE] vault.token: starting renewer
2023-02-21T19:43:36.463-0500 [DEBUG] (runner) final config: {"Consul":{"Address":"localhost:8500","Namespace":"","Auth":{"Enabled":false,"Username":""},"Retry":{"Attempts":12,"Backoff":250000000,"MaxBackoff":60000000000,"Enabled":true},"SSL":{"CaCert":"","CaPath":"","Cert":"","Enabled":false,"Key":"","ServerName":"","Verify":true},"Token":"","TokenFile":"","Transport":{"CustomDialer":null,"DialKeepAlive":30000000000,"DialTimeout":30000000000,"DisableKeepAlives":false,"IdleConnTimeout":5000000000,"MaxIdleConns":0,"MaxIdleConnsPerHost":100,"TLSHandshakeTimeout":10000000000}},"Dedup":{"Enabled":false,"MaxStale":2000000000,"Prefix":"consul-template/dedup/","TTL":15000000000,"BlockQueryWaitTime":60000000000},"DefaultDelims":{"Left":null,"Right":null},"Exec":{"Command":[],"Enabled":false,"Env":{"Denylist":[],"Custom":[],"Pristine":false,"Allowlist":[]},"KillSignal":2,"KillTimeout":30000000000,"ReloadSignal":null,"Splay":0,"Timeout":0},"KillSignal":2,"LogLevel":"trace","FileLog":{"LogFilePath":"","LogRotateBytes":0,"LogRotateDuration":86400000000000,"LogRotateMaxFiles":0},"MaxStale":2000000000,"PidFile":"","ReloadSignal":1,"Syslog":{"Enabled":false,"Facility":"LOCAL0","Name":"consul-template"},"Templates":[{"Backup":false,"Command":[],"CommandTimeout":30000000000,"Contents":"{{ range $kv := tree \"/\" }}{{ $kv.Key }}={{ $kv.Value }}\n{{ end }}","CreateDestDirs":true,"Destination":"/tmp/out","ErrMissingKey":false,"ErrFatal":true,"Exec":{"Command":[],"Enabled":false,"Env":{"Denylist":[],"Custom":[],"Pristine":false,"Allowlist":[]},"KillSignal":2,"KillTimeout":30000000000,"ReloadSignal":null,"Splay":0,"Timeout":30000000000},"Perms":0,"User":null,"Uid":null,"Group":null,"Gid":null,"Source":"","Wait":{"Enabled":false,"Min":0,"Max":0},"LeftDelim":"","RightDelim":"","FunctionDenylist":[],"SandboxPath":""}],"TemplateErrFatal":null,"Vault":{"Address":"","Enabled":false,"Namespace":"","RenewToken":true,"Retry":{"Attempts":12,"Backoff":250000000,"MaxBackoff":60000000000,"Enabled":true},"SSL":{"CaCert":"","CaPath":"","Cert":"","Enabled":true,"Key":"","ServerName":"","Verify":true},"Transport":{"CustomDialer":null,"DialKeepAlive":30000000000,"DialTimeout":30000000000,"DisableKeepAlives":false,"IdleConnTimeout":5000000000,"MaxIdleConns":0,"MaxIdleConnsPerHost":100,"TLSHandshakeTimeout":10000000000},"UnwrapToken":false,"DefaultLeaseDuration":300000000000,"LeaseRenewalThreshold":0.9,"K8SAuthRoleName":"","K8SServiceAccountTokenPath":"/run/secrets/kubernetes.io/serviceaccount/token","K8SServiceAccountToken":"","K8SServiceMountPath":"kubernetes"},"Nomad":{"Address":"","Enabled":false,"Namespace":"","SSL":{"CaCert":"","CaPath":"","Cert":"","Enabled":false,"Key":"","ServerName":"","Verify":true},"AuthUsername":"","AuthPassword":"","Transport":{"CustomDialer":null,"DialKeepAlive":30000000000,"DialTimeout":30000000000,"DisableKeepAlives":false,"IdleConnTimeout":5000000000,"MaxIdleConns":0,"MaxIdleConnsPerHost":100,"TLSHandshakeTimeout":10000000000},"Retry":{"Attempts":12,"Backoff":250000000,"MaxBackoff":60000000000,"Enabled":true}},"Wait":{"Enabled":false,"Min":null,"Max":null},"Once":true,"ParseOnly":false,"BlockQueryWaitTime":60000000000,"ErrOnFailedLookup":false}
2023-02-21T19:43:36.463-0500 [INFO] (runner) creating watcher
2023-02-21T19:43:36.463-0500 [INFO] (runner) starting
2023-02-21T19:43:36.463-0500 [DEBUG] (runner) running initial templates
2023-02-21T19:43:36.463-0500 [DEBUG] (runner) initiating run
2023-02-21T19:43:36.463-0500 [DEBUG] (runner) checking template ca09035a33eb5f87be732366ed54229c
2023-02-21T19:43:36.464-0500 [DEBUG] (runner) missing data for 1 dependencies
2023-02-21T19:43:36.464-0500 [DEBUG] (runner) missing dependency: kv.list(/)
2023-02-21T19:43:36.464-0500 [DEBUG] (runner) add used dependency kv.list(/) to missing since isLeader but do not have a watcher
2023-02-21T19:43:36.464-0500 [DEBUG] (runner) was not watching 1 dependencies
2023-02-21T19:43:36.464-0500 [DEBUG] (watcher) adding kv.list(/)
2023-02-21T19:43:36.464-0500 [TRACE] (watcher) kv.list(/) starting
2023-02-21T19:43:36.464-0500 [DEBUG] (runner) diffing and updating dependencies
2023-02-21T19:43:36.464-0500 [DEBUG] (runner) watching 1 dependencies
2023-02-21T19:43:36.464-0500 [TRACE] (view) kv.list(/) starting fetch
2023-02-21T19:43:36.464-0500 [TRACE] kv.list(/): GET /v1/kv//?stale=true&wait=1m0s
2023-02-21T19:43:36.465-0500 [TRACE] kv.list(/): returned 3 pairs
2023-02-21T19:43:36.465-0500 [TRACE] (view) kv.list(/) marking successful data response
2023-02-21T19:43:36.465-0500 [TRACE] (view) kv.list(/) successful contact, resetting retries
2023-02-21T19:43:36.465-0500 [TRACE] (view) kv.list(/) received data
2023-02-21T19:43:36.465-0500 [DEBUG] (runner) receiving dependency kv.list(/)
2023-02-21T19:43:36.465-0500 [DEBUG] (runner) initiating run
2023-02-21T19:43:36.465-0500 [DEBUG] (runner) checking template ca09035a33eb5f87be732366ed54229c
2023-02-21T19:43:36.465-0500 [DEBUG] (runner) rendering "(dynamic)" => "/tmp/out"
2023-02-21T19:43:36.465-0500 [DEBUG] (runner) diffing and updating dependencies
2023-02-21T19:43:36.465-0500 [DEBUG] (runner) kv.list(/) is still needed
2023-02-21T19:43:36.465-0500 [DEBUG] (runner) watching 1 dependencies
2023-02-21T19:43:36.465-0500 [DEBUG] (runner) all templates rendered
2023-02-21T19:43:36.465-0500 [INFO] (runner) once mode and all templates rendered
2023-02-21T19:43:36.465-0500 [INFO] (runner) stopping
2023-02-21T19:43:36.465-0500 [DEBUG] (runner) stopping watcher
2023-02-21T19:43:36.465-0500 [DEBUG] (watcher) stopping all views
2023-02-21T19:43:36.465-0500 [TRACE] (watcher) stopping kv.list(/)
2023-02-21T19:43:36.465-0500 [DEBUG] (runner) stopping vault token watcher
2023-02-21T19:43:36.465-0500 [DEBUG] (watcher) stopping all views
2023-02-21T19:43:36.465-0500 [TRACE] (watcher) stopping vault.token
```

### Expected behavior

`/tmp/out` should contain:
```
foo=1
foo/=2
foo/bar=3
```

### Actual behavior

`/tmp/out` contains:
```
foo=1
foo/bar=3
```

### Steps to reproduce

Provided above

### References

Start with the `tree` template function and reproduce the report using the shown Consul KV entries and template configuration. Verify that the rendered output includes `foo=1`, `foo/=2`, and `foo/bar=3`; no source file or test is named in the issue.

Written by the indexing model from the issue text.