git-instaweb: Use $conf, not $fqgitdir/gitweb/httpd.conf
git-instaweb: Use $conf, not $fqgitdir/gitweb/httpd.conf

Don't repeat yourself: use "$conf" instead of its [current] contents,
namely "$fqgitdir/gitweb/httpd.conf".

Signed-off-by: Jakub Narebski <a6a1517a087f9f64a72f41a0de57ff01fbb0e412@gmail.com>
Acked-by: Eric Wong <8c2951295f8292b0c03727bc4652981172298eae@yhbt.net>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git