SCEV/test: fix nit

Author: artagnon

llvm/test/Analysis/ScalarEvolution/implied-via-division.ll

@@ -413,7 +413,7 @@ exit:
 }
 
 define void @swapped_predicate(i32 %n) {
-; Prove that (n >= 1) ===> (0 >= -n / 2).
+; Prove that (n s>= 1) ===> (0 s>= -n / 2).
 ; CHECK-LABEL: 'swapped_predicate'
 ; CHECK-NEXT:  Determining loop execution counts for: @swapped_predicate
 ; CHECK-NEXT:  Loop %header: backedge-taken count is (1 + %n.div.2)<nuw><nsw>
@@ -440,7 +440,7 @@ exit:
 }
 
 define void @swapped_predicate_neg(i32 %n) {
-; Prove that (n >= 1) =\=> (-n / 2 >= 0).
+; Prove that (n s>= 1) =\=> (-n / 2 s>= 0).
 ; CHECK-LABEL: 'swapped_predicate_neg'
 ; CHECK-NEXT:  Determining loop execution counts for: @swapped_predicate_neg
 ; CHECK-NEXT:  Loop %header: Unpredictable backedge-taken count.