test: Fix eslint invocation in static-code

`find_scripts()` previously only accepted two arguments, i.e. one glob.
Make it accept many, which will make test_eslint() *actually* cover
`*.jsx` files.

test/static-code

@@ -24,8 +24,9 @@ find_scripts() {
     (
         # Any non-binary file which contains a given shebang
         git grep --cached -lIz '^#!.*'"$1"
-        # Any file matching the provided glob
-        git ls-files -z "$2"
+        shift
+        # Any file matching the provided globs
+        git ls-files -z "$@"
     ) | sort -z | uniq -z
 }
 
@@ -80,7 +81,7 @@ test_js_translatable_strings() {
 if [ "${WITH_PARTIAL_TREE:-0}" = 0 ]; then
     test_eslint() {
         test -x node_modules/.bin/eslint -a -x /usr/bin/node || skip 'no eslint'
-        find_scripts 'node' '*.js' '*.js?' | xargs -0 node_modules/.bin/eslint
+        find_scripts 'node' '*.js' '*.jsx' | xargs -0 node_modules/.bin/eslint
     }
 fi