Fix test for D77924.

The trailing 'L' was missing in the expectation.

Differential Revision: https://reviews.llvm.org/D86321

Bug: http://b/152588929
Test: treehugger
Change-Id: I5475aa09bf5599d5b3b663f9105a5225246f08b3
diff --git a/test/test_demangle.pass.cpp b/test/test_demangle.pass.cpp
index 02e8407..943f27c 100644
--- a/test/test_demangle.pass.cpp
+++ b/test/test_demangle.pass.cpp
@@ -29790,7 +29790,7 @@
 #if LDBL_FP128
     // This was found by libFuzzer+HWASan on aarch64 Android.
     {"1\006ILeeeEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE",
-     {"\x6<-0x1.cecececececececececececececep+11983"}},
+     {"\x6<-0x1.cecececececececececececececep+11983L>"}},
 #endif
 };
 const unsigned NF = sizeof(fp_literal_cases) / sizeof(fp_literal_cases[0]);