Allow spaces in commandLineArgumentProvider values

[audkar]

A sample problem: android/nowinandroid#604

I think it's perfectly valid to have a space in a file path. But the current regex pattern explicitly does not allow spaces in command line arguments.

I looked in the git history for this formatting, but couldn't find a reason for such a restrictive pattern.

[audkar]

@ting-yuan What do you think? Would this be an appropriate fix for this problem?

[solrudev]

Will this be merged? I have a problem using AndroidX Room Gradle plugin due to having a whitespace in my user folder's name.

[naj147]

Hey, thank you for your effort on this, Is this fix going to be merged anytime soon? it has been approved almost a year ago.