Trivial cleanup of typos and fixed-length buffers.

Change-Id: I4ea3bb51320160c5ebda8b2a8ba3ca81452915b5
diff --git a/src/compiler/codegen/GenInvoke.cc b/src/compiler/codegen/GenInvoke.cc
index 4847ef8..037a9bb 100644
--- a/src/compiler/codegen/GenInvoke.cc
+++ b/src/compiler/codegen/GenInvoke.cc
@@ -131,7 +131,7 @@
 }
 
 /*
- * Bit of a hack here - in leiu of a real scheduling pass,
+ * Bit of a hack here - in the absence of a real scheduling pass,
  * emit the next instruction in static & direct invoke sequences.
  */
 int nextSDCallInsn(CompilationUnit* cUnit, MIR* mir,
@@ -233,7 +233,7 @@
 }
 
 /*
- * Bit of a hack here - in leiu of a real scheduling pass,
+ * Bit of a hack here - in the absence of a real scheduling pass,
  * emit the next instruction in a virtual invoke sequence.
  * We can use rLR as a temp prior to target address loading
  * Note also that we'll load the first argument ("this") into