test(_parse_help): add comments to test cases related to smartctl

Author: chrfranke

test/t/unit/test_unit_parse_help.py

@@ -204,11 +204,13 @@ def test_32(self, bash):
         assert output.split() == "--exclude=".split()
 
     def test_33(self, bash):
+        """Pattern found in the output of 'smartctl --help'."""
         assert_bash_exec(bash, "fn() { echo '-f A1[,A2[,A3]] --foo=A1[,A2[,A3]]'; }")
         output = assert_bash_exec(bash, "_parse_help fn", want_output=True)
         assert output.split() == "--foo".split()
 
     def test_34(self, bash):
+        """Pattern found in the output of 'smartctl --help'."""
         assert_bash_exec(bash, "fn() { echo '-f [+]ARG --foo=[+]ARG'; }")
         output = assert_bash_exec(bash, "_parse_help fn", want_output=True)
         assert output.split() == "--foo".split()