[PE-D][Tester D] Add command should trim the white space for address field if user accidentally added extra whitespace

[soc-pe-bot]

Entered command: add n/John Doe p/98765432 e/johnd@example.com a/311, Clementi Ave 2, #02-25 dob/1999-03-09 pri/HIGH income/2000 famsize/3 r/Promises to pay back next week. t/friends t/owesMoney

I do think that some users might have entered the field wrongly, so he did not actually meant there to be so many spaces. I think the application should handle it

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Labels: type.FeatureFlaw severity.Low original: mingyang143/ped#1