[NFC] Remove trailing space

sed -Ei 's/[[:space:]]+$//' include/**/*.{def,h,td} lib/**/*.{cpp,h,td}
diff --git a/llvm/lib/Support/Host.cpp b/llvm/lib/Support/Host.cpp
index cafdc2f..955c1b3 100644
--- a/llvm/lib/Support/Host.cpp
+++ b/llvm/lib/Support/Host.cpp
@@ -1255,7 +1255,7 @@
       return "swift";
     default:;
     }
-  
+
   return "generic";
 }
 #else