run_regression: Make sure to strip trailing whitespaces from error output. (#8319)

Should finally fix arm64 (qemu) nightly failures.

diff --git a/test/regress/run_regression.py b/test/regress/run_regression.py
index 01f118d8a01b3b0973bc21fb0bb2a67cabf9e633..227ff2ef1e9242380a682ea9db8ac1a58e772369 100755 (executable)
--- a/test/regress/run_regression.py
+++ b/test/regress/run_regression.py
@@ -471,7 +471,7 @@ def run_benchmark(benchmark_info):
     output = re.sub(r"^[ \t]*", "", output.strip(), flags=re.MULTILINE)
     error = re.sub(r"^[ \t]*", "", error.strip(), flags=re.MULTILINE)
     # qemu (used for arm nightlies) emits additional error output for non-zero exit codes
-    error = re.sub(r"qemu: uncaught target signal.*", "", error.strip())
+    error = re.sub(r"qemu: uncaught target signal.*", "", error).strip()
     return (output, error, exit_status)