correcting the incorrect converter of tslint: one-line (#1871)

Author: Tanya-ruby

src/converters/lintConfigs/rules/ruleConverters/one-line.ts

@@ -8,7 +8,7 @@ export const convertOneLine: RuleConverter = (tslintRule) => {
         rules: [
             {
                 notices: ruleLen > 0 && ruleLen < 5 ? [CheckAllTokensMsg] : undefined,
-                ruleArguments: [ruleLen > 0 ? "1tbs" : "off"],
+                ruleArguments: ruleLen > 0 ? ["1tbs", { allowSingleLine: true }] : ["off"],
                 ruleName: "brace-style",
             },
         ],

src/converters/lintConfigs/rules/ruleConverters/tests/one-line.test.ts

@@ -27,7 +27,7 @@ describe("convertOneLine", () => {
             rules: [
                 {
                     notices: [CheckAllTokensMsg],
-                    ruleArguments: ["1tbs"],
+                    ruleArguments: ["1tbs", { allowSingleLine: true }],
                     ruleName: "brace-style",
                 },
             ],
@@ -48,7 +48,7 @@ describe("convertOneLine", () => {
         expect(result).toEqual({
             rules: [
                 {
-                    ruleArguments: ["1tbs"],
+                    ruleArguments: ["1tbs", { allowSingleLine: true }],
                     ruleName: "brace-style",
                 },
             ],