Update a missing test fixture.

Gbp-Pq: ignore

tests/comparators/test_elf.py

@@ -172,7 +172,7 @@ def libmix_differences(libmix1, libmix2):
 @skip_unless_tools_exist("xxd")
 @skip_unless_tools_exist("llvm-readobj", "llvm-objdump")
 @skip_unless_tools_exist("readelf", "objdump")
-@skip_if_tool_version_is("readelf", readelf_version, "2.29")
+@skip_if_tool_version_is("readelf", readelf_version, "2.38")
 @skip_if_binutils_does_not_support_x86()
 def test_libmix_differences(libmix_differences):
     assert len(libmix_differences) == 5

tests/data/elfmix_disassembly_expected_diff

@@ -9,4 +9,4 @@
 -	mov    $0x2a,%eax
 +	mov    $0x2b,%eax
  	pop    %rbp
- 	retq   
+ 	ret