Portability fix: Avoid the use of sed -r

[fumiyas]

Legacy sed does not support -r option (use extended regular expressions)

[schmonz]

Another option: according to GNU sed's manpage, -E is the POSIX-specified and portable synonym for -r. This seems to work for me on a bunch of platforms:

@@ -20,8 +20,8 @@ svpid=$!
 waitok test.sv

 svstat test.sv \
-| sed -r 's, \(.+\),,' \
-| sed -r 's, ([0-9]|1[0-9]) second.+$, ok,'
+| sed -E 's, \(.+\),,' \
+| sed -E 's, ([0-9]|1[0-9]) second.+$, ok,'