fix broken test_extensions_sanity_check which was hardcoding /bin/bas…

…h in expected error message

test/framework/easyblock.py

@@ -2082,7 +2082,7 @@ def test_extensions_sanity_check(self):
         eb.silent = True
         error_pattern = r"Sanity check failed: extensions sanity check failed for 1 extensions: toy\n"
         error_pattern += r"failing sanity check for 'toy' extension: "
-        error_pattern += r'command "thisshouldfail" failed; output:\n/bin/bash:.* thisshouldfail: command not found'
+        error_pattern += r'command "thisshouldfail" failed; output:\n.* thisshouldfail: command not found'
         with self.mocked_stdout_stderr():
             self.assertErrorRegex(EasyBuildError, error_pattern, eb.run_all_steps, True)