Tidy up. Trailing whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156602 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/SubtargetFeature.cpp b/lib/MC/SubtargetFeature.cpp
index be41579..0a44e77 100644
--- a/lib/MC/SubtargetFeature.cpp
+++ b/lib/MC/SubtargetFeature.cpp
@@ -92,7 +92,7 @@
 static std::string Join(const std::vector<std::string> &V) {
   // Start with empty string.
   std::string Result;
-  // If the vector is not empty 
+  // If the vector is not empty
   if (!V.empty()) {
     // Start with the first feature
     Result = V[0];
@@ -104,7 +104,7 @@
       Result += V[i];
     }
   }
-  // Return the features string 
+  // Return the features string
   return Result;
 }
 
@@ -205,7 +205,7 @@
 
 /// ClearImpliedBits - For each feature that (transitively) implies this
 /// feature, clear it.
-/// 
+///
 static
 void ClearImpliedBits(uint64_t &Bits, const SubtargetFeatureKV *FeatureEntry,
                       const SubtargetFeatureKV *FeatureTable,
@@ -252,7 +252,7 @@
 
   return Bits;
 }
-           
+
 
 /// getFeatureBits - Get feature bits a CPU.
 ///
@@ -279,7 +279,7 @@
   // Check if help is needed
   if (CPU == "help")
     Help(CPUTable, CPUTableSize, FeatureTable, FeatureTableSize);
-  
+
   // Find CPU entry if CPU name is specified.
   if (!CPU.empty()) {
     const SubtargetFeatureKV *CPUEntry = Find(CPU, CPUTable, CPUTableSize);
@@ -304,11 +304,11 @@
   // Iterate through each feature
   for (size_t i = 0, E = Features.size(); i < E; i++) {
     const StringRef Feature = Features[i];
-    
+
     // Check for help
     if (Feature == "+help")
       Help(CPUTable, CPUTableSize, FeatureTable, FeatureTableSize);
-    
+
     // Find feature in table.
     const SubtargetFeatureKV *FeatureEntry =
                        Find(StripFlag(Feature), FeatureTable, FeatureTableSize);
@@ -349,7 +349,7 @@
 
   // Find entry
   const SubtargetInfoKV *Entry = Find(CPU, Table, TableSize);
-  
+
   if (Entry) {
     return Entry->Value;
   } else {