Correcting legacy filename for checksum files.

scripts/build/binary_checksums

@@ -49,7 +49,7 @@ do
 			;;
 
 		*)
-			CHECKSUMS="${CHECKSUM}sums.txt"
+			CHECKSUMS="${CHECKSUM}sum.txt"
 			;;
 	esac
 
@@ -68,7 +68,7 @@ do
 		\! -path './boot/boot.bin' \
 		\! -path './boot/grub/stage2_eltorito' \
 		\! -path './*SUMS' \
-		\! -path './*sums.txt' \
+		\! -path './*sum.txt' \
 	-print0 | sort -z | xargs -0 ${CHECKSUM}sum > ../${CHECKSUMS}
 
 cat > ${CHECKSUMS} << EOF

scripts/build/source_checksums

@@ -56,7 +56,7 @@ do
 				;;
 
 			*)
-				CHECKSUMS="${CHECKSUM}sums.txt"
+				CHECKSUMS="${CHECKSUM}sum.txt"
 				;;
 		esac
 
@@ -72,7 +72,7 @@ do
 		cd ${DIRECTORY}
 		find . -type f \
 			\! -path './*SUMS' \
-			\! -path './*sums.txt' \
+			\! -path './*sum.txt' \
 		-print0 | sort -z | xargs -0 ${CHECKSUM}sum > ../${CHECKSUMS}
 
 cat > ${CHECKSUMS} << EOF