[Patch #772077 from Tim Rice] Fix for compiling the readline module on...

[Patch #772077 from Tim Rice] Fix for compiling the readline module on UnixWare; fix goofy comment indent.  2.3 bugfix candidate

setup.py

@@ -278,8 +278,8 @@ class PyBuildExt(build_ext):
             inc_dirs += ['/system/include', '/atheos/autolnk/include']
             inc_dirs += os.getenv('C_INCLUDE_PATH', '').split(os.pathsep)
 
-        # OSF/1 has some stuff in /usr/ccs/lib (like -ldb)
-        if platform == 'osf1':
+        # OSF/1 and Unixware have some stuff in /usr/ccs/lib (like -ldb)
+        if platform in ['osf1', 'unixware7', 'openunix8']:
             lib_dirs += ['/usr/ccs/lib']
 
         # Check for MacOS X, which doesn't need libm.a at all