Finishing initial docs for all transformations in Passes.html.

Also cleaned up some comments in source files.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43674 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/SimplifyCFG.cpp b/lib/Transforms/Scalar/SimplifyCFG.cpp
index 6b47ef7..5f0ab19 100644
--- a/lib/Transforms/Scalar/SimplifyCFG.cpp
+++ b/lib/Transforms/Scalar/SimplifyCFG.cpp
@@ -8,13 +8,13 @@
 //===----------------------------------------------------------------------===//
 //
 // This file implements dead code elimination and basic block merging.
+// Specifically:
 //
-// Specifically, this:
-//   * removes basic blocks with no predecessors
-//   * merges a basic block into its predecessor if there is only one and the
+//   * Removes basic blocks with no predecessors.
+//   * Merges a basic block into its predecessor if there is only one and the
 //     predecessor only has one successor.
-//   * Eliminates PHI nodes for basic blocks with a single predecessor
-//   * Eliminates a basic block that only contains an unconditional branch
+//   * Eliminates PHI nodes for basic blocks with a single predecessor.
+//   * Eliminates a basic block that only contains an unconditional branch.
 //
 //===----------------------------------------------------------------------===//