Comment grammar fixes.

thanks to Duncan.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140850 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/LLVMTargetMachine.cpp b/lib/CodeGen/LLVMTargetMachine.cpp
index 3bd1d60..80ecc22 100644
--- a/lib/CodeGen/LLVMTargetMachine.cpp
+++ b/lib/CodeGen/LLVMTargetMachine.cpp
@@ -114,11 +114,12 @@
   : TargetMachine(T, Triple, CPU, FS) {
   CodeGenInfo = T.createMCCodeGenInfo(Triple, RM, CM);
   AsmInfo = T.createMCAsmInfo(Triple);
-  // TargetSelect.h moved to different directory between LLVM 2.9 and 3.0,
-  // and if the old one gets included then MCAsmInfo will be NULL and we'd crash
-  // later.
-  // Provide the user a useful error message about whats wrong.
-  assert(AsmInfo && "MCAsmInfo not initialized. Make sure you include the correct TargetSelect.h!");
+  // TargetSelect.h moved to a different directory between LLVM 2.9 and 3.0,
+  // and if the old one gets included then MCAsmInfo will be NULL and
+  // we'll crash later.
+  // Provide the user with a useful error message about what's wrong.
+  assert(AsmInfo && "MCAsmInfo not initialized."
+	 "Make sure you include the correct TargetSelect.h!");
 }
 
 bool LLVMTargetMachine::addPassesToEmitFile(PassManagerBase &PM,