Fix typo in my last commit.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@231039 91177308-0d34-0410-b5e6-96231b3b80d8

test/Frontend/dependency-generation-crash.c

@@ -1,4 +1,4 @@
-// RUN: not %clang_cc1 -E -dependency-file bla -MT %t/doesnotexist/bla.o -MP -o $t/doesnotexist/bla.o -x c /dev/null 2>&1 | FileCheck %s
+// RUN: not %clang_cc1 -E -dependency-file bla -MT %t/doesnotexist/bla.o -MP -o %t/doesnotexist/bla.o -x c /dev/null 2>&1 | FileCheck %s
 
 // CHECK: error: unable to open output file