fix: Give the schema-drafts.js proper name and path in source maps

It appears, that uglify.js always uses the path from the command-line
source file. Changing it by a command-line parameter does not work.
It means that files cannot be miniified by piping them to uglifyjs.

package.json

@@ -34,7 +34,7 @@
   "scripts": {
     "prepare": "npm run lint && npm run build",
     "lint": "standard --fix -v",
-    "build": "node scripts/bundle-jsonlint && uglifyjs -o web/jsonlint.min.js --source-map \"filename='jsonlint.js',url='jsonlint.min.js.map',includeSources=true\" lib/jsonlint.js && uglifyjs -o web/validator.min.js --source-map \"filename='validator.js',url='validator.min.js.map',includeSources=true\" lib/validator.js && uglifyjs -o web/formatter.min.js --source-map \"filename='formatter.js',url='formatter.min.js.map',includeSources=true\" lib/formatter.js && uglifyjs -o web/sorter.min.js --source-map \"filename='sorter.js',url='sorter.min.js.map',includeSources=true\" lib/sorter.js && node scripts/bundle-schema-drafts | uglifyjs -o web/schema-drafts.min.js --source-map \"filename='schema-drafts.js',url='schema-drafts.min.js.map',includeSources=true\" && uglifyjs -o web/ajv.min.js --source-map \"filename='ajv.js',url='ajv.min.js.map',includeSources=true\" node_modules/ajv/dist/ajv.bundle.js",
+    "build": "node scripts/bundle-jsonlint && uglifyjs -o web/jsonlint.min.js --source-map \"filename='jsonlint.js',url='jsonlint.min.js.map',includeSources=true\" lib/jsonlint.js && uglifyjs -o web/validator.min.js --source-map \"filename='validator.js',url='validator.min.js.map',includeSources=true\" lib/validator.js && uglifyjs -o web/formatter.min.js --source-map \"filename='formatter.js',url='formatter.min.js.map',includeSources=true\" lib/formatter.js && uglifyjs -o web/sorter.min.js --source-map \"filename='sorter.js',url='sorter.min.js.map',includeSources=true\" lib/sorter.js && node scripts/bundle-schema-drafts && uglifyjs -o web/schema-drafts.min.js --source-map \"filename='schema-drafts.js',url='schema-drafts.min.js.map',includeSources=true\" lib/schema-drafts.js && uglifyjs -o web/ajv.min.js --source-map \"filename='ajv.js',url='ajv.min.js.map',includeSources=true\" node_modules/ajv/dist/ajv.bundle.js",
     "test": "nyc --silent node test/parse1 && nyc --silent --no-clean node test/parse1 --native-parser && nyc --silent --no-clean node test/parse2 && nyc --silent --no-clean node test/parse3 && nyc --silent --no-clean node test/parse4 && nyc --silent --no-clean node test/parse5 && nyc --silent --no-clean node test/portable && nyc --silent --no-clean node lib/cli package.json test/recursive && nyc --silent --no-clean node lib/cli -sq test/passes/hasOwnProperty.json && nyc --silent --no-clean node lib/cli -s -e json-schema-draft-04 -V test/passes/3.schema.json test/passes/3.json && nyc --silent --no-clean node lib/cli -C test/passes/comments.txt && nyc --silent --no-clean node lib/cli -S test/passes/strings.txt && nyc --silent --no-clean node lib/cli -M json5 test/passes/json5.text && nyc --silent --no-clean node lib/cli -v && nyc --silent --no-clean node lib/cli -h && nyc --silent --no-clean node lib/cli -pc test/fails/10.json || nyc report",
     "test:old": "node test/parse1 && node test/parse1 --native-parser && node test/parse2 && node test/parse3 && node test/parse4 && node test/parse5 && node test/portable && node lib/cli package.json test/recursive && node lib/cli -sq test/passes/hasOwnProperty.json && node lib/cli -s -e json-schema-draft-04 -V test/passes/3.schema.json test/passes/3.json && node lib/cli -C test/passes/comments.txt && node lib/cli -S test/passes/strings.txt && node lib/cli -M json5 test/passes/json5.text && node lib/cli -v && node lib/cli -h",
     "coverage": "cat coverage/lcov.info | npx coveralls",

scripts/bundle-schema-drafts.js

@@ -16,9 +16,11 @@ var environments = [
   'json-schema-draft-06',
   'json-schema-draft-07'
 ]
-var source = environments.map(function (environment) {
+var input = environments.map(function (environment) {
   var file = path.join(__dirname, '../node_modules/ajv/lib/refs/' + environment + '.json')
   var code = fs.readFileSync(file)
   return 'exports["' + environment + '"] = ' + code
 })
-console.log(prefix + source.join('\n') + suffix)
+var output = prefix + input.join('\n') + suffix
+var file = path.join(__dirname, '../lib/schema-drafts.js')
+fs.writeFileSync(file, output)