Don't go over 80 chars in MCStreamer.cpp. NFC.

Fixing up style issues around the area to prepare for
a larger differential.

llvm-svn: 350286
diff --git a/llvm/lib/MC/MCStreamer.cpp b/llvm/lib/MC/MCStreamer.cpp
index 18fbea4..2b2ec40 100644
--- a/llvm/lib/MC/MCStreamer.cpp
+++ b/llvm/lib/MC/MCStreamer.cpp
@@ -917,8 +917,9 @@
     TS->emitAssignment(Symbol, Value);
 }
 
-void MCTargetStreamer::prettyPrintAsm(MCInstPrinter &InstPrinter, raw_ostream &OS,
-                              const MCInst &Inst, const MCSubtargetInfo &STI) {
+void MCTargetStreamer::prettyPrintAsm(MCInstPrinter &InstPrinter,
+                                      raw_ostream &OS, const MCInst &Inst,
+                                      const MCSubtargetInfo &STI) {
   InstPrinter.printInst(&Inst, OS, "", STI);
 }