Print error when adb client creation fails

Summary:
It looks like the shell method of creating an adb client is failing almost all of the time: https://fburl.com/scuba/6ac2zhxn

Thankfully we have the adbkit fallback, but we don't have the error message to see why it's failing: https://our.intern.facebook.com/intern/logview/details/infinity_javascript/dab8d34562f0cdb835132f8825317942/

Reviewed By: danielbuechele

Differential Revision: D14260406

fbshipit-source-id: 6b21b5d9a4806780daa7ce692770788067364d12

src/utils/adbClient.js

@@ -40,7 +40,8 @@ function createClient() {
     'createADBClient.shell',
   ).catch(err => {
     console.error(
-      'Failed to create adb client using shell adb command. Trying with adbkit',
+      'Failed to create adb client using shell adb command. Trying with adbkit.\n' +
+        err.toString(),
     );
 
     /* In the event that starting adb with the above method fails, fallback