tests: replace "sed -E" with "sed -r"

because the latter is more portable.

* tests/strace-D.test: Replace "sed -E" with "sed -r".

diff --git a/tests/strace-D.test b/tests/strace-D.test
index 6fc117af78b53b1f3b0a461305d76e88102ee913..4a1a90b65d57a4f33e8fcc36ae0e2e19087aa8be 100755 (executable)
--- a/tests/strace-D.test
+++ b/tests/strace-D.test
@@ -25,7 +25,7 @@ status_file=/proc/self/status
 [ -f "$status_file" ] ||
        framework_skip_ "$status_file is not available"
 
-set -- sed -n -E '/^(P|Tracer)Pid:/p' "$status_file"
+set -- sed -r -n '/^(P|Tracer)Pid:/p' "$status_file"
 "$@" > "$LOG" ||
        framework_skip_ "$* does not work"