Commit 429f7a062e3b5cf6fcf01eb00600cee5fe4d751f introduced perl into
arch/arm/boot/compressed/Makefile, which unfortunately leads to locale
warnings.

Fix it by setting default locale.

Signed-off-by: Pavel Machek <pavel@ucw.cz>

diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile
index 45a6b9b..4656e98 100644
--- a/arch/arm/boot/compressed/Makefile
+++ b/arch/arm/boot/compressed/Makefile
@@ -118,7 +118,7 @@ asflags-y := -DZIMAGE
 
 # Supply kernel BSS size to the decompressor via a linker symbol.
 KBSS_SZ = $(shell $(CROSS_COMPILE)nm $(obj)/../../../../vmlinux | \
-		perl -e 'while (<>) { \
+		LC_ALL=C perl -e 'while (<>) { \
 			$$bss_start=hex($$1) if /^([[:xdigit:]]+) B __bss_start$$/; \
 			$$bss_end=hex($$1) if /^([[:xdigit:]]+) B __bss_stop$$/; \
 		}; printf "%d\n", $$bss_end - $$bss_start;')


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