The synopsis of the manpages should use the hyphenated version

The synopsis of the manpages should use the hyphenated version of the git
commands. Adapt the remaining offenders.
Signed-off-by: NChristian Meder <chris@absolutegiganten.org>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

Documentation/git-clone.txt

@@ -8,7 +8,7 @@ git-clone - Clones a repository.
 
 SYNOPSIS
 --------
-'git clone' [-l [-s]] [-q] [-n] [-u <upload-pack>] <repository> <directory>
+'git-clone' [-l [-s]] [-q] [-n] [-u <upload-pack>] <repository> <directory>
 
 DESCRIPTION
 -----------

Documentation/git-commit.txt

@@ -7,7 +7,7 @@ git-commit - Record your changes
 
 SYNOPSIS
 --------
-'git commit' [-a] [-s] [-v] [(-c | -C) <commit> | -F <file> | -m <msg>] [-e] <file>...
+'git-commit' [-a] [-s] [-v] [(-c | -C) <commit> | -F <file> | -m <msg>] [-e] <file>...
 
 DESCRIPTION
 -----------

Documentation/git-log.txt

@@ -8,7 +8,7 @@ git-log - Show commit logs
 
 SYNOPSIS
 --------
-'git log' <option>...
+'git-log' <option>...
 
 DESCRIPTION
 -----------

Documentation/git-resolve.txt

@@ -8,7 +8,7 @@ git-resolve - Merge two commits
 
 SYNOPSIS
 --------
-'git resolve' <current> <merged> <message>
+'git-resolve' <current> <merged> <message>
 
 DESCRIPTION
 -----------

Documentation/git-shortlog.txt

@@ -8,7 +8,7 @@ git-shortlog - Summarize 'git log' output.
 
 SYNOPSIS
 --------
-'git log --pretty=short | git shortlog'
+'git-log --pretty=short | git shortlog'
 
 DESCRIPTION
 -----------

Documentation/git-show-branch.txt

@@ -7,7 +7,7 @@ git-show-branch - Show branches and their commits.
 
 SYNOPSIS
 --------
-'git show-branch [--all] [--heads] [--tags] [--more=<n> | --list | --independent | --merge-base] <reference>...'
+'git-show-branch [--all] [--heads] [--tags] [--more=<n> | --list | --independent | --merge-base] <reference>...'
 
 DESCRIPTION
 -----------

Documentation/git-status.txt

@@ -8,7 +8,7 @@ git-status - Show working tree status.
 
 SYNOPSIS
 --------
-'git status'
+'git-status'
 
 DESCRIPTION
 -----------

Documentation/git-whatchanged.txt

@@ -8,7 +8,7 @@ git-whatchanged - Show logs with difference each commit introduces.
 
 SYNOPSIS
 --------
-'git whatchanged' <option>...
+'git-whatchanged' <option>...
 
 DESCRIPTION
 -----------