Properly abort when the title of a commit is empty.
tree96fc928ff1138be19551714fbddbebad3c9caa0c
-rw-r--r-- 21 .gitattributes
-rw-r--r-- 37 AUTHORS
-rw-r--r-- 35147 COPYING
-rwxr-xr-x 62553 svn-wrapper.sh