[PATCH] git-gui: '/dev/null' on Windows is named 'nul'

[Johannes Sixt <J.Sixt@eudaptics.com>]

From: Johannes Sixt <johannes.sixt@telecom.at>

Making (or amending) an initial commit on Windows fails because
redirecting something to '/dev/null' must fail - this device does not exist.
Redirect to 'nul' instead.

Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
---
 I've noticed this while using the MinGW port, but I do not know whether
 this is needed or even works on Cygwin.

 (Now lets see whether my MUA wraps long lines...)

 -- Hannes

 git-gui/git-gui.sh |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/git-gui/git-gui.sh b/git-gui/git-gui.sh
index f84ba33..971d5fe 100755
--- a/git-gui/git-gui.sh
+++ b/git-gui/git-gui.sh
@@ -1288,7 +1288,11 @@ proc commit_committree {fd_wt curHEAD msg} {
 		}
 	} else {
 		# git commit-tree writes to stderr during initial commit.
-		lappend cmd 2>/dev/null
+		if {[is_Windows]} {
+			lappend cmd 2>nul
+		} else {
+			lappend cmd 2>/dev/null
+		}
 	}
 	lappend cmd <$msg_p
 	if {[catch {set cmt_id [eval exec $cmd]} err]} {
-- 
1.5.0.2.279.g4808