Allow string-builder to take a zero argument.
authorChris Hanson <org/chris-hanson/cph>
Tue, 19 Nov 2019 06:46:03 +0000 (22:46 -0800)
committerChris Hanson <org/chris-hanson/cph>
Wed, 20 Nov 2019 03:06:01 +0000 (19:06 -0800)
commitb52ecd51f28d1530073d155670bad2919f2cfca6
tree24446f44408c2950e7178516621bc257e588879c
parenta90dfb5360f6f4a9392096f1082726e8be69de63
Allow string-builder to take a zero argument.

This simplifies cases where the length of the result is known in advance and
passed as the buffer size.
src/runtime/string.scm