devtools: make log checking script BSD-compatible

The -e flag to readlink doesn't exist on FreeBSD so change it to -f instead
which is present on both BSD and Linux. Error reported is:

  readlink: illegal option -- e
  usage: readlink [-fn] [file ...]
  usage: dirname string [...]
  ./devtools/check-git-log.sh: /git-log-fixes.sh: not found

Fixes: 814c8822ef7b ("scripts: check cc stable mailing list in commit")

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>

diff --git a/devtools/check-git-log.sh b/devtools/check-git-log.sh
index e3ac0e4..8449d4f 100755 (executable)
--- a/devtools/check-git-log.sh
+++ b/devtools/check-git-log.sh
@@ -47,7 +47,7 @@ if [ "$1" = '-h' -o "$1" = '--help' ] ; then
        exit
 fi
 
-selfdir=$(dirname $(readlink -e $0))
+selfdir=$(dirname $(readlink -f $0))
 range=${1:-origin/master..}
 # convert -N to HEAD~N.. in order to comply with git-log-fixes.sh getopts
 if printf -- $range | grep -q '^-[0-9]\+' ; then