mbuto: Use grep -E instead of egrepHEADmaster

On arch linux using `egrep` emits a warning:
    egrep: warning: egrep is obsolescent; using grep -E

Use `grep -E` where previously `egrep` was called.
Still keep `egrep` in PROGS list if someone wishes to call it inside of
VM.

Signed-off-by: Lukasz Gut <lgut@lgut.eu>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/mbuto b/mbuto
index c2fffa0..b80ea78 100755
--- a/mbuto
+++ b/mbuto
@@ -242,7 +242,7 @@ profile_kselftests() {
 	__pattern="$(list_join "${__colls}" '^' '$' '|')"
 
 	__skip_targets="$(${AWK} '/^TARGETS/ { print $3}' ${__makefile} | \
-		${EGREP} -v "${__pattern}" | ${TR} '\n' ' ')"
+		${GREP} -vE "${__pattern}" | ${TR} '\n' ' ')"
 
 	${RM} -rf "${__testpath}/kselftest_install"
 	${MAKE} SKIP_TARGETS="${__skip_targets}" -C ${__testpath} install \
@@ -262,7 +262,7 @@ profile_kselftests() {
 	if [ ! -z "${__mods}" ]; then
 		__pattern="$(list_join "${__mods}" '^obj-\$\(' '\).*.o$' '|')"
 		__result="$(${BASENAME} -a -s .o \
-			   $(${EGREP} -rn --include "*Makefile" ${__pattern} | \
+			   $(${GREP} -rnE --include "*Makefile" ${__pattern} | \
 			   ${TR} -d '+' | ${AWK} -F'=' '/=/ {print $2}'))"
 		__find_pattern="$(list_join "${__result}" '-name ' '.ko ' '-o ')"