content type fail parsing merge directive

[Tim Penhey]

lib/lp/code/mail/codehandler.py looks for:
   if part['Content-type'].startswith('text/plain'):

However with a merge directive sent with KMail:

(pdb) part['content-type']
'Text/Plain;\n charset="us-ascii"'

Note the case sensitivity.

[Tim Penhey (thumper)]

http://www.w3.org/Protocols/rfc1341/4_Content-Type.html suggests that the value of the content type should be case-insensitive.

[Ursula Junque (ursinha)]

Fixed in stable r10439 <http://bazaar.launchpad.net/~launchpad-pqm/launchpad/stable/revision/10439>