Rationalize the names of passes that print information:
    -callgraph => print-callgraph
    -callscc   => print-callgraph-sccs
    -cfgscc    => print-cfg-sccs
    -externalfnconstants => print-externalfnconstants
    -print               => print-function
    -print-alias-sets (no change)
    -print-callgraph     => dot-callgraph
    -print-cfg           => dot-cfg
    -print-cfg-only      => dot-cfg-only
    -print-dom-info (no change)
    -printm              => print-module
    -printusedtypes      => print-used-types


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56487 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/CFGPrinter.cpp b/lib/Analysis/CFGPrinter.cpp
index 46d3930..143220c 100644
--- a/lib/Analysis/CFGPrinter.cpp
+++ b/lib/Analysis/CFGPrinter.cpp
@@ -7,7 +7,7 @@
 //
 //===----------------------------------------------------------------------===//
 //
-// This file defines a '-print-cfg' analysis pass, which emits the
+// This file defines a '-dot-cfg' analysis pass, which emits the
 // cfg.<fnname>.dot file for each function in the program, with a graph of the
 // CFG for that function.
 //
@@ -165,7 +165,7 @@
 
 char CFGPrinter::ID = 0;
 static RegisterPass<CFGPrinter>
-P1("print-cfg", "Print CFG of function to 'dot' file", false, true);
+P1("dot-cfg", "Print CFG of function to 'dot' file", false, true);
 
 namespace {
   struct VISIBILITY_HIDDEN CFGOnlyPrinter : public CFGPrinter {
@@ -188,7 +188,7 @@
 
 char CFGOnlyPrinter::ID = 0;
 static RegisterPass<CFGOnlyPrinter>
-P2("print-cfg-only",
+P2("dot-cfg-only",
    "Print CFG of function to 'dot' file (with no function bodies)", false, true);
 
 /// viewCFG - This function is meant for use from the debugger.  You can just