Fix comments

Author: Camsyn

llvm/test/tools/UpdateTestChecks/update_test_checks/Inputs/check_empty.ll

@@ -1,6 +1,6 @@
 ; RUN: opt < %s -S | FileCheck %s
 
-; Test whether the UTC check empty lines instead of skipping them.
+; Test whether UTC checks empty lines instead of skipping them.
 define i32 @test(i32 %x) {
 entry:
   br label %block1

llvm/test/tools/UpdateTestChecks/update_test_checks/Inputs/check_empty.ll.expected

@@ -1,7 +1,7 @@
 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 7
 ; RUN: opt < %s -S | FileCheck %s
 
-; Test whether the UTC check empty lines instead of skipping them.
+; Test whether UTC checks empty lines instead of skipping them.
 define i32 @test(i32 %x) {
 ; CHECK-LABEL: define i32 @test(
 ; CHECK-SAME: i32 [[X:%.*]]) {