gdb-python: Update so 'rtems task' lists the classic tasks.

This is a first pass at cleaning up the support. To use:

 $ waf configure --prefix=$HOME/development/rtems/4.11
 $ waf build install

Start GDB and break at Init:

 (gdb) py import rtems
 (gdb) rtems task

will list the classic API tasks.

tools/gdb/python/sparc.py

@@ -73,7 +73,7 @@ class register:
 
             return val
 
-    def __init__(self,reg):
+    def __init__(self, reg):
         self.reg = reg
 
     def global_regs(self):
@@ -139,4 +139,4 @@ class register:
         print '\b\b ]'
 
         sr = self.status()
-        print sr.to_string()
+        print sr.to_string()