fix failing test

Author: michaelmaitland

llvm/test/CodeGen/RISCV/GlobalISel/irtranslator/fallback.ll

@@ -22,7 +22,7 @@ entry:
   ret <vscale x 1 x i8> %a
 }
 
-; FALLBACK-WITH-REPORT-ERR: remark: <unknown>:0:0: unable to translate instruction{{.*}}scalable_inst
+; FALLBACK-WITH-REPORT-ERR: remark: <unknown>:0:0: unable to translate instruction: call:
 ; FALLBACK-WITH-REPORT-OUT-LABEL: scalable_inst
 define <vscale x 1 x i8> @scalable_inst(i64 %0) nounwind {
 entry:
@@ -35,7 +35,7 @@ entry:
   ret <vscale x 1 x i8> %a
 }
 
-; FALLBACK-WITH-REPORT-ERR: remark: <unknown>:0:0: unable to translate instruction{{.*}}scalable_alloca
+; FALLBACK-WITH-REPORT-ERR: remark: <unknown>:0:0: unable to translate instruction: alloca:
 ; FALLBACK-WITH-REPORT-OUT-LABEL: scalable_alloca
 define void @scalable_alloca() #1 {
   %local0 = alloca <vscale x 16 x i8>