fix long_description again:

we can't build a windows-installer on Linux if the description is
unicode, see http://bugs.python.org/issue10945 (also python 2.6 builds
roundup-1.4.17.linux-i686.exe when building bdist_wininst where python
2.5 produces roundup-1.4.17.win32.exe, I'm building the windows binary
distro with 2.5 now)

Author: Ralf Schlatterbeck

CHANGES.txt

@@ -2,7 +2,7 @@ This file contains the changes to the Roundup system over time. The entries
 are given with the most recent entry first. If no other name is given,
 Richard Jones did the change.
 
-2011-05-13 1.4.17 (r4603)
+2011-05-13 1.4.17 (r4605)
 
 Features:
 

setup.py

@@ -94,9 +94,15 @@ def main():
     # perform the setup action
     from roundup import __version__
 
+    # long_description may not contain non-ascii characters. Distutils
+    # will produce an non-installable installer on linux *and* we can't
+    # run the bdist_wininst on Linux if there are non-ascii characters
+    # because the distutils installer will try to use the mbcs codec
+    # which isn't available on non-windows platforms. See also
+    # http://bugs.python.org/issue10945
     long_description=open('doc/announcement.txt').read().decode('utf8')
     try:
-        long_description.encode('ascii')
+        long_description = long_description.encode('ascii')
     except UnicodeEncodeError, cause:
         print >> sys.stderr, "doc/announcement.txt contains non-ascii: %s" \
             % cause