file-systems: Add missing docstring.

* gnu/system/file-systems.scm (file-system-type-predicate): Add docstring.
2017-03-21 22:07:08 +01:00 · 2017-03-21 22:07:08 +01:00 · 7dbd75b3cf
parent 278d486b0c
commit 7dbd75b3cf
1 changed files with 2 additions and 0 deletions
--- a/gnu/system/file-systems.scm
+++ b/gnu/system/file-systems.scm
@ -417,6 +417,8 @@ a bind mount."
              %network-configuration-files))

 (define (file-system-type-predicate type)
+  "Return a predicate that, when passed a file system, returns #t if that file
+system has the given TYPE."
  (lambda (fs)
    (string=? (file-system-type fs) type)))