moved "set -e" to run(); removed "exit 1" statement from usage()

bash-folders-image-to-webp.sh

@@ -1,7 +1,5 @@
 #!/usr/bin/env bash
 
-set -e
-
 usage() {
     cat << EOF
 USAGE: ${0##*/} [OPTIONS] PATH
@@ -15,8 +13,6 @@ OPTIONS:
 SEE ALSO:
     cwebp(1), inotifywait(1)
 EOF
-
-    exit 1
 }
 
 require() {
@@ -28,6 +24,8 @@ require() {
 run() {
     local file extension
 
+    set -e
+
     mkdir --parents "${1}"
 
     while read -r file; do