e2fsprogs: Fix wrong error code after optimization
fsck.ext will return an error code of 1 if a file systems was checked
and successfully repaired. Even when an optimization was performed it
will return this error code.
This patch will change the error code to 0 if only optimizations had
changed the file systems.
The reason for this patch is a question I asked at the ext4 ML:
http://www.spinics.net/lists/linux-ext4/msg55700.html
Backport from git://git.kernel.org/pub/scm/fs/ext2/e2fsprogs.git
Based on commit
bf9f3b6d5b10d19218b4ed904c12b22e36ec57dd
Signed-off-by: Daniel Schultz <d.schultz@phytec.de>
Signed-off-by: Ross Burton <ross.burton@intel.com>
