gnu: build: Improve comments.

* gnu/build/file-systems.scm (iso9660-superblock-volume-name):
Add clarifying comment.
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Danny Milosavljevic 2017-05-31 19:38:49 +02:00
parent 1c797d4bfb
commit cdc701ea48
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@ -283,6 +283,7 @@ (define (digits->string bytes)
(define (iso9660-superblock-volume-name sblock)
"Return the volume name of SBLOCK as a string. The volume name is an ASCII
string. Trailing spaces are trimmed."
;; Note: Valid characters are of the set "[0-9][A-Z]_" (ECMA-119 Appendix A)
(string-trim-right (latin1->string (sub-bytevector sblock 40 32)
(lambda (c) #f)) #\space))