Update to latest typescript version (#274)

__tests__/exec.test.ts

@@ -748,9 +748,7 @@ describe('@actions/exec', () => {
       const exitCode = await exec.exec(`"${cmdPath}"`, args, options)
       expect(exitCode).toBe(0)
       expect(outStream.getContents().split(os.EOL)[0]).toBe(
-        `[command]${
+        `[command]${process.env.ComSpec} /D /S /C ""${cmdPath}" "my arg 1" "my arg 2""`
-          process.env.ComSpec
-        } /D /S /C ""${cmdPath}" "my arg 1" "my arg 2""`
       )
       expect(output.trim()).toBe(
         'args[0]: "<quote>my arg 1<quote>"\r\n' +
@@ -780,9 +778,7 @@ describe('@actions/exec', () => {
         const exitCode = await exec.exec(`${cmd}`, args, options)
         expect(exitCode).toBe(0)
         expect(outStream.getContents().split(os.EOL)[0]).toBe(
-          `[command]${
+          `[command]${process.env.ComSpec} /D /S /C "${cmdPath} "my arg 1" "my arg 2""`
-            process.env.ComSpec
-          } /D /S /C "${cmdPath} "my arg 1" "my arg 2""`
         )
         expect(output.trim()).toBe(
           'args[0]: "<quote>my arg 1<quote>"\r\n' +

src/toolrunner.ts

@@ -639,23 +639,15 @@ class ExecState extends events.EventEmitter {
     if (this.processExited) {
       if (this.processError) {
         error = new Error(
-          `There was an error when attempting to execute the process '${
+          `There was an error when attempting to execute the process '${this.toolPath}'. This may indicate the process failed to start. Error: ${this.processError}`
-            this.toolPath
-          }'. This may indicate the process failed to start. Error: ${
-            this.processError
-          }`
         )
       } else if (this.processExitCode !== 0 && !this.options.ignoreReturnCode) {
         error = new Error(
-          `The process '${this.toolPath}' failed with exit code ${
+          `The process '${this.toolPath}' failed with exit code ${this.processExitCode}`
-            this.processExitCode
-          }`
         )
       } else if (this.processStderr && this.options.failOnStdErr) {
         error = new Error(
-          `The process '${
+          `The process '${this.toolPath}' failed because one or more lines were written to the STDERR stream`
-            this.toolPath
-          }' failed because one or more lines were written to the STDERR stream`
         )
       }
     }