ident: make user_ident_explicitly_given static
In v1.5.6-rc0~56^2 (2008-05-04) "user_ident_explicitly_given"
was introduced as a global for communication between config,
ident, and builtin-commit. In v1.7.0-rc0~72^2 (2010-01-07)
readers switched to using the common wrapper
user_ident_sufficiently_given(). After v1.7.11-rc1~15^2~18
(2012-05-21), the var is only written in ident.c.
Now we can make it static, which will enable further
refactoring without worrying about upsetting other code.
Signed-off-by: Jeff King <peff@peff.net>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>