cg_llvm: add a pause to make comment less confusing

Author: tshepang

compiler/rustc_codegen_llvm/src/mono_item.rs

@@ -153,7 +153,7 @@ impl CodegenCx<'_, '_> {
             return false;
         }
 
-        // With pie relocation model calls of functions defined in the translation
+        // With pie relocation model, calls of functions defined in the translation
         // unit can use copy relocations.
         if self.tcx.sess.relocation_model() == RelocModel::Pie && !is_declaration {
             return true;