Fix formatting of a heading in docs/test_methods.rst.

s3rvac · s3rvac · commit f34b7109624d · 2020-04-08T12:38:49.000+02:00
This fixes the following `make docs` warning:

    retdec-regression-tests-framework/docs/test_methods.rst:332: WARNING: Title underline too short.

    Output LLVM IR
    ^^^^^^^^^^
diff --git a/docs/test_methods.rst b/docs/test_methods.rst
@@ -329,7 +329,7 @@ Output DSM
     assert self.out_dsm.contains(r'; function: ack')
 
 Output LLVM IR
-^^^^^^^^^^
+^^^^^^^^^^^^^^
 
 .. code-block:: python
 
