[Automake-NG] [FYI] [ng] tests: relax even more a grepping check on configure output

[Stefano Lattarini]

This is a follow-up to today's commit v1.12.2-594-geee3aff.

* t/subpkg.sh: Here: do bee too picky about the verb declension
used in a "checking whether" message.

Signed-off-by: Stefano Lattarini <address@hidden>
---
 t/subpkg.sh |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/t/subpkg.sh b/t/subpkg.sh
index 9b9f7eb..d3bbb44 100755
--- a/t/subpkg.sh
+++ b/t/subpkg.sh
@@ -107,8 +107,9 @@ cd ..
 
 ./configure >stdout || { cat stdout; exit 1; }
 cat stdout
-# Don't pretend to know the name or path of the C compiler.
-grep '^checking whether .* understands -c and -o together' stdout
+# Don't pretend to know the name or path of the C compiler.  Also,
+# don't be too picky about the verb declension.
+$EGREP '^checking whether .* understands? -c and -o together' stdout
 
 $MAKE
 $MAKE distcheck
-- 
1.7.10.4