This concerns committing, creating merge conflict messages and creating
and editing squash messages. In a squash message, once the comment
character has been determined initially is always the first character.
Note that if core.commentChar=auto and there is a sequence of squashes,
it may be necessary to change the comment character when a new message
is added.
Bug: 579325
Change-Id: Idca19284a0240cd322e7512ea299a03658e1b2c1
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>