Merge branch 'jc/custom-comment-char'

Allow a configuration variable core.commentchar to customize the
character used to comment out the hint lines in the edited text from
the default '#'.

* jc/custom-comment-char:
  Allow custom "comment char"

Documentation/config.txt

@@ -534,6 +534,12 @@ core.editor::
 	variable when it is set, and the environment variable
 	`GIT_EDITOR` is not set.  See linkgit:git-var[1].
 
+core.commentchar::
+	Commands such as `commit` and `tag` that lets you edit
+	messages consider a line that begins with this character
+	commented, and removes them after the editor returns
+	(default '#').
+
 sequence.editor::
 	Text editor used by `git rebase -i` for editing the rebase insn file.
 	The value is meant to be interpreted by the shell when it is used.

Documentation/git-stripspace.txt

@@ -35,7 +35,13 @@ OPTIONS
 -------
 -s::
 --strip-comments::
-	Skip and remove all lines starting with '#'.
+	Skip and remove all lines starting with comment character (default '#').
+
+-c::
+--comment-lines::
+	Prepend comment character and blank to each line. Lines will automatically
+	be terminated with a newline. On empty lines, only the comment character
+	will be prepended.
 
 EXAMPLES
 --------

Documentation/technical/api-strbuf.txt

@@ -156,6 +156,11 @@ then they will free() it.
 	Remove the bytes between `pos..pos+len` and replace it with the given
 	data.
 
+`strbuf_add_commented_lines`::
+
+	Add a NUL-terminated string to the buffer. Each line will be prepended
+	by a comment character and a blank.
+
 `strbuf_add`::
 
 	Add data of given length to the buffer.
@@ -229,6 +234,11 @@ which can be used by the programmer of the callback as she sees fit.
 
 	Add a formatted string to the buffer.
 
+`strbuf_commented_addf`::
+
+	Add a formatted string prepended by a comment character and a
+	blank to the buffer.
+
 `strbuf_fread`::
 
 	Read a given size of data from a FILE* pointer to the buffer.