HTTP Cache Manager only sends If-None-Match header

**Matt Parker** ([Bug 56163](https://bz.apache.org/bugzilla//show_bug.cgi?id=56163&redirect=false)):
When using the HTTP Cache Manager, a PUT sampler should automatically include the "If-Match" header, rather than the "If-None-Match" header, because of the semantics of updates (http://tools.ietf.org/html/rfc2616#section-14.24)

Created attachment [put-sends-if-none-match.jmx](https://apache.github.io/jmeter-bugzilla-attachments/63/56163/31336/put-sends-if-none-match.jmx): test plan to show that HTTP Cache Manager inserts If-None-Match instead of If-Match for PUT sampler
put-sends-if-none-match.jmx

````xml

false
false



host
www.mnot.net
=


path
/cache_docs/
=







continue

false
1

1
1
1392832764000
1392832764000
false





true
false






${host}





${path}
GET
true
false
true
false
false





200

Assertion.response_code
false
8







${host}





${path}
GET
true
false
true
false
false





304

Assertion.response_code
false
8







${host}





${path}
PUT
true
false
true
false
false





false

saveConfig

true
true
true
true
true
true
true
true
true
false
true
true
true
true
true
false
true
true
false
false
2
true

````

OS: Linux

Start with the HTTP Cache Manager and PUT sampler behavior, then run the attached put-sends-if-none-match.jmx test plan to reproduce the header issue. Locate the existing cache-manager tests or implementation and verify that PUT requests send If-Match rather than If-None-Match.

Written by the indexing model from the issue text.