bin: trim trailing whitespace

Author: Zash

bin/common.bash

@@ -368,7 +368,7 @@ validate_config() {
 
         schema_validation_result="$(mktemp  --suffix='.txt')"
         append_trap "rm ${schema_validation_result}" EXIT
-        
+
         if ! yajsv -s "${schema_file}" "${merged_config}" > "${schema_validation_result}"; then
             log_warning "Failed schema validation:"
             sed -r 's/^.*_(..-config\.yaml): fail: (.*)/\1: \2/; / failed validation$/q' < "${schema_validation_result}"