[master] Removed remaining references to system_messages.py

Makefile.am

@@ -110,7 +110,6 @@ install-exec-hook:
 
 ### include tool to generate documentation from log message specifications
 ### in the distributed tarball:
-EXTRA_DIST = tools/system_messages.py
 EXTRA_DIST += tools/path_replacer.sh
 EXTRA_DIST += tools/mk_cfgrpt.sh
 

tools/system_messages.cc

@@ -89,7 +89,7 @@ const std::string FILE_HEADER =
 %version;\n\
 ]>\n\
 <!--\n\
-     This XML document is generated using the system_messages.py tool\n\
+     This XML document is generated using the system_messages tool\n\
      based on the .mes message files.\n\
 \n\
      Do not edit this file.\n\