[Rd] base::format adds extraneous whitespace for some inputs

David J. Birke djb|rke @end|ng |rom berke|ey@edu
Thu Jun 20 02:24:38 CEST 2019

Dear R Core Team,

First of all, thank you for your amazing work on developing and 
maintaining this wonderful language.

I just stumbled upon the following behavior in R version 3.6.0:

format(9.91, digits = 2, nsmall = 2)
format(9.99, digits = 2, nsmall = 2)

yield "9.91" and " 9.99" with an extraneous whitespace.

My expected output for the second command is "9.99".

I have not found anything explaining the whitespace in the help files. 
Therefore, I am writing to report this behavior as a possible bug.

Best wishes,

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