Fix directory permissions.
Fix directory permissions.

'install -d' does not take a set of access settings as first numerical
argument. At least on MacOS (BSD), but according to the manpage
(https://linux.die.net/man/1/install) on Linux, an extradirectory with
the name '755' were created.

ogr3/bash-git-prompt,magicmonty/bash-git-prompt,gullevek/bash-git-prompt,magicmonty/bash-git-prompt,ogr3/bash-git-prompt,ogr3/bash-git-prompt,magicmonty/bash-git-prompt,gullevek/bash-git-prompt,gullevek/bash-git-prompt