packages: 'modify-inputs' preserves and introduces input labels if needed.

Fixes a bug whereby, in an expression like this:

  (modify-inputs lst
    (delete ...)
    (prepend ...))

the 'delete' clause would have no effect because 'prepend' would pass it
a label-less input list.

* guix/packages.scm (inputs-sans-labels): Remove.
(modify-inputs): In the 'prepend' and 'append' cases, preserve/add input
labels instead of removing them.

0 files changed, 0 insertions, 0 deletions