Mine

#!/bin/sh

REPOS="$1"
TXN="$2"

SVNLOOK="/usr/bin/svnlook"
SVNLOOK_SWITCH="-r"

"$SVNLOOK" changed "$SVNLOOK_SWITCH" "$TXN" "$REPOS" | while read line; do
        if echo -n "$line" | egrep -q '^[AU].*[^/]$'; then
                filepath="`echo -n "$line" | cut -c 5-`"
        fi
        #check if the path has one of our predefined suffixes
        FOO=$(echo $filepath | egrep "\.c|\.cpp|\.h|\.txt|\.sql|\.xml|SConscript|SConstruct|\.sh$") && if [ -z $NOTFOO ]; then
                eolstyle="`$SVNLOOK propget "$SVNLOOK_SWITCH" "$TXN" "$REPOS" svn:eol-style "$filepath" 2>/dev/null`"
                if [ "$eolstyle" != LF ]; then
                        echo "File '$filepath' doesn't have" 1>&2
                        echo "an svn:eol-style property of 'LF'." 1>&2
                        exit 1
                        echo exit so breit wie hoch
                fi
        fi
done
echo "Commit successful"
exit 0