bitbake: event: Replace slightly elderly bbmake references!

bbmake hasn't existed for a while (a decade+) so we should
probably remove the references.

(Bitbake rev: 4170cf874850b950f31d2e36c895c110c0b096c3)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/event.py

@@ -382,7 +382,7 @@ class StampUpdate(Event):
     targets = property(getTargets)
 
 class BuildBase(Event):
-    """Base class for bbmake run events"""
+    """Base class for bitbake build events"""
 
     def __init__(self, n, p, failures = 0):
         self._name = n
@@ -427,13 +427,13 @@ class BuildInit(BuildBase):
         BuildBase.__init__(self, name, p)
 
 class BuildStarted(BuildBase, OperationStarted):
-    """bbmake build run started"""
+    """Event when builds start"""
     def __init__(self, n, p, failures = 0):
         OperationStarted.__init__(self, "Building Started")
         BuildBase.__init__(self, n, p, failures)
 
 class BuildCompleted(BuildBase, OperationCompleted):
-    """bbmake build run completed"""
+    """Event when builds have completed"""
     def __init__(self, total, n, p, failures=0, interrupted=0):
         if not failures:
             OperationCompleted.__init__(self, total, "Building Succeeded")