Cleanup spaces in output.

Remove newline between MQDescriptor and Status import in c++-impl and
alphabetize them.

Prevent functions from having multiple spaces before their opening
bracket.

Test: visually confirmed output
Change-Id: I8054325682e6aa2d493398d4878838ec47bf0435
diff --git a/generateCpp.cpp b/generateCpp.cpp
index 95176f9..f834f78 100644
--- a/generateCpp.cpp
+++ b/generateCpp.cpp
@@ -901,7 +901,7 @@
     const bool returnsValue = !method->results().empty();
     const TypedVar *elidedReturn = method->canElideCallback();
 
-    out << "{\n";
+    out << " {\n";
 
     out.indent();