[Bug] On Windows 10: "git-secrets: line 255: [: too many arguments"

**Problem:**
On Windows 10, when run the command "git commit -m ", git-secrets will throw an error message: "git-secrets: line 255: [: too many arguments"
**Reproduce:**
1. Create new account with username have a space (ex: this is my account).
2. Install git-secrets to that account (please refer the READ.ME of this repository for more details)
3. The error message will be shown anytime we run git commit