[bug-mailutils] Strange rfc2047_decode behavior if -Os used during compile

[Anthony Quinn]

I just ran into an issue:

rfc2047_decode would not convert =20 into a space.  I have traced this
behavior down to the use of -Os or any optimizing flags when compiling
mailutils.  Basically if I compile mailutils with out any optimization
flags it works fine rfc2047_decode will decode the quote printable string
correctly with optimization flags it breaks.  This only seems to effect =20
not sure why I have not had much time to dig into the code. 

Example string:

=?iso-8859-1?q?Anthony=20Quinn?=

Decodes to :

AnthonyQuinn


-Anthony Quinn
M & A Technical Lead
(585) 586-2000 x1021
address@hidden

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