[PATCH 1/8] am: suppress error output from a conditional

[Ramkumar Ramachandra <artagnon@gmail.com>]

In preparation for a later patch that creates $dotest/autostash in
git-rebase.sh before anything else happens, don't assume that the
presence of a $dotest directory implies the existence of the $next and
$last files.  The check for the files is in a conditional anyway, but
`cat` is executed on potentially non-existent files.  Suppress this
error output.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
---
 git-am.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/git-am.sh b/git-am.sh
index c092855..88aa438 100755
--- a/git-am.sh
+++ b/git-am.sh
@@ -446,8 +446,8 @@ done
 # If the dotest directory exists, but we have finished applying all the
 # patches in them, clear it out.
 if test -d "$dotest" &&
-   last=$(cat "$dotest/last") &&
-   next=$(cat "$dotest/next") &&
+   last=$(cat "$dotest/last" 2>/dev/null) &&
+   next=$(cat "$dotest/next" 2>/dev/null) &&
    test $# != 0 &&
    test "$next" -gt "$last"
 then
-- 
1.8.3.rc1.52.gc14258d