git-gui: use git_init to create new repository dir

When creating a new repository, git-gui creates a directory, cds to it,
then runs git-init, but git-init learned to create and initialize the
directory in 1.6.5. git-gui requires git version >= 2.36, so teach
git-gui to use git-init's full capability.

Signed-off-by: Mark Levedahl <[email protected]>

Author: mark987

lib/choose_repository.tcl

@@ -323,7 +323,7 @@ method _write_local_path {args} {
 }
 
 method _git_init {} {
-	if {[catch {file mkdir $local_path} err]} {
+	if {[catch {git init $local_path} err]} {
 		error_popup [strcat \
 			[mc "Failed to create repository %s:" $local_path] \
 			"\n\n$err"]
@@ -337,13 +337,6 @@ method _git_init {} {
 		return 0
 	}
 
-	if {[catch {git init} err]} {
-		error_popup [strcat \
-			[mc "Failed to create repository %s:" $local_path] \
-			"\n\n$err"]
-		return 0
-	}
-
 	_append_recentrepos [pwd]
 	set ::_gitdir .git
 	set ::_prefix {}