Revert change in git pre-commit hook.

.githooks/pre-commit

@@ -1,49 +1 @@
-#!/usr/bin/env bash
-#
-# Git "hook chain", used to execute multiple scripts per hook.
-# To use:
-#  * create a directory called <hookname>.d
-#  * add scripts to this directory (executable)
-#  * ln -s hook-chain <hookname>
-#
-# Now the scripts in that directory should be called in order.
-#
-# Set $HOOKCHAIN_DEBUG to see the names of invoked scripts.
-#
-# Based on script by Oliver Reflalo:
-# https://stackoverflow.com/questions/8730514/chaining-git-hooks
-#
-
-hookname=`basename $0`
-
-# Temp file for stdin, cleared at exit
-FILE=`mktemp`
-trap 'rm -f $FILE' EXIT
-cat - > $FILE
-
-# Git hooks directory (this dir)
-DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null && pwd )"
-
-# Execute hooks in the directory one by one
-for hook in $DIR/$hookname.d/*;
-do
-    if [ -x "$hook" ]; then
-
-        if [ "$HOOKCHAIN_DEBUG" ]; then
-            echo "Running hook $hook"
-        fi
-
-        cat $FILE | $hook "$@"
-        status=$?
-
-        if [ $status -ne 0 ]; then
-            echo "Hook $hook failed with error code $status"
-            echo "To commit anyway, use --no-verify"
-            exit $status
-        else
-            if [ "$HOOKCHAIN_DEBUG" ]; then
-                echo "Hook passed: $hook"
-            fi
-        fi
-    fi
-done
+hook-chain