util: dovecot-sysreport: Fix bug in perl existence check

Also use "[[" command to be consistent with rest of the script.

diff --git a/src/util/dovecot-sysreport b/src/util/dovecot-sysreport
index 7fb2c105d16d5735be8d2f936b30ff78d8848fbe..d0d6fe79ccc30b7fe0928f20281b16122d2427b4 100755 (executable)
--- a/src/util/dovecot-sysreport
+++ b/src/util/dovecot-sysreport
@@ -137,7 +137,7 @@ f = open('$SRTEMP/conf$cf', "w")
 f.write(hidden)
 f.close()
 HEREDOC
-        elif ! [ -x "$(command -v perl)" ]; then
+        elif [[ -x "$(command -v perl)" ]]; then
           perl -pe 's/(?<!no)((?:password|key|nonce|dnpass)\s*=\s*).*?(?=$|\s)/\1#hidden/g' \
             $cf > $SRTEMP/conf$cf
         else