Fix cpplint's whitespace complaints.

Change-Id: I11fd2db2badf7bd98e7866ca2155d8ef1e112408
diff --git a/src/compiler/codegen/arm/Assemble.cc b/src/compiler/codegen/arm/Assemble.cc
index 8901bf3..1b7dc29 100644
--- a/src/compiler/codegen/arm/Assemble.cc
+++ b/src/compiler/codegen/arm/Assemble.cc
@@ -1256,7 +1256,7 @@
             u4 operand;
             u4 value;
             operand = lir->operands[i];
-            switch(encoder->fieldLoc[i].kind) {
+            switch (encoder->fieldLoc[i].kind) {
                 case kFmtUnused:
                     break;
                 case kFmtFPImm: