tree 7c8ea49e93ec31cfb6a9b5800d8171e2fc8ac6e1
parent 55e77deac19ce82831a7d873d8459b0bfb59391e
author Erich Smith <heartquest@gmail.com> 1336912530 -0400
committer Erich Smith <heartquest@gmail.com> 1336961634 -0400

disable z() if fasd is enabled

loading fasd clobbers z(), and results in a cryptic syntax error
message, since 'z' is already an alias when z.plugin.bash is being
sourced.

this conditional detects this situation and returns early.