patch [#34103] path_util_split_name_num.patch
from Lawrence D'Oliveiro (ldo)

Simplify implementation of BLI_split_name_num

- With some changes of my own to avoid second call to strlen()


git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@55148 954f8c5b-7b00-dc11-b283-0030488c597c