change suffix to .sig from .asc

bin/check-dir-sig

@@ -2,5 +2,5 @@
 
 SNEAK_KEY_ID="5539AD00DE4C42F3AFE11575052443F4DF2A55C2"
 
-gpg --verify SHASUMS.asc SHASUMS
+gpg --verify SHASUMS.sig SHASUMS
 shasum -c SHASUMS

bin/sign-dir

@@ -8,4 +8,4 @@ if [[ -e ./SHASUMS ]]; then
 fi
 
 shasum * > SHASUMS
-gpg -u $SNEAK_KEY_ID -a --output SHASUMS.asc --detach-sig SHASUMS
+gpg -u $SNEAK_KEY_ID -a --output SHASUMS.sig --detach-sig SHASUMS