use git show to get the diff
authorJoey Hess <joey@kodama.kitenet.net>
Wed, 12 Mar 2008 18:44:20 +0000 (14:44 -0400)
committerJoey Hess <joey@kodama.kitenet.net>
Wed, 12 Mar 2008 18:44:20 +0000 (14:44 -0400)
commit3dc979470ed07e48c9919b14c0075c44a435cdcd
tree202741a35eac10e4df2406d3e093d968c9054369
parent20f1365ce1ec3737149a88b73101188269227968
use git show to get the diff

If a diff of the firsst commit in a git repo was requested, it would fail and
print to stderr since first^ isn't valid. Using git show will always work.
IkiWiki/Rcs/git.pm