[PATCH v2 09/11] git-gui: allow specifying path '.' to the browser

[Mark Levedahl <mlevedahl@gmail.com>]

Invoking "git-gui browser rev ." should show the file browser for the
commitish rev, starting at the current directory. When the current
directory is the working tree root, this errors out in normalize_relpath
because the '.' is removed, yielding an empty list as argument to [file
join ...]. The browser function demands "./" in this case, so make it
so. (./ works on Windows as well because g4w accepts posix file
naming).

Signed-off-by: Mark Levedahl <mlevedahl@gmail.com>
---
 git-gui.sh | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/git-gui.sh b/git-gui.sh
index a72d8a59ec..d373457901 100755
--- a/git-gui.sh
+++ b/git-gui.sh
@@ -3007,7 +3007,11 @@ proc normalize_relpath {path} {
 		}
 		lappend elements $item
 	}
-	return [eval file join $elements]
+	if {$elements ne {}} {
+		return [eval file join $elements]
+	} else {
+		return {./}
+	}
 }
 
 # -- Not a normal commit type invocation?  Do that instead!
-- 
2.54.0.99.14