[eslint] Enforce brace style

.eslintrc

@@ -11,6 +11,18 @@
 			"tab",
 			{ "SwitchCase": 1 }
 		],
+		"brace-style": [
+			"error",
+			"1tbs"
+		],
+		"space-before-function-paren": [
+			"error",
+			"never"
+		],
+		"space-unary-ops": [
+			"error",
+			{ "words": true }
+		],
 		"linebreak-style": [
 			"error",
 			"unix"