fix find_program() bug: no result in not-win sys
diff --git a/doxybuild.py b/doxybuild.py
index b0859a5..cb27d2b 100644
--- a/doxybuild.py
+++ b/doxybuild.py
@@ -31,7 +31,7 @@
paths = os.environ.get('PATH', '').split(os.pathsep)
suffixes = ('win32' in sys.platform) and '.exe .com .bat .cmd' or ''
for filename in filenames:
- for name in [filename+ext for ext in suffixes.split()]:
+ for name in [filename+ext for ext in suffixes.split(' ')]:
for directory in paths:
full_path = os.path.join(directory, name)
if os.path.isfile(full_path):