Fix #132 from Coverity, retval could have been derefed
treea46a5b4d065b0ac8aee9e0c22e3a7ab8fe9b6432
drwxr-xr-x - Demo
drwxr-xr-x - Doc
drwxr-xr-x - Grammar
drwxr-xr-x - Include
-rw-r--r-- 13548 LICENSE
drwxr-xr-x - Lib
drwxr-xr-x - Mac
-rw-r--r-- 34760 Makefile.pre.in
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-rw-r--r-- 54300 README
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-rwxr-xr-x 628760 configure
-rw-r--r-- 92913 configure.in
-rwxr-xr-x 7122 install-sh
-rw-r--r-- 26144 pyconfig.h.in
-rw-r--r-- 64695 setup.py