Fixes <https://bugs.gnu.org/29686>.
Reported by Oleg Pykhalov <go.wigust@gmail.com>.
* gnu/packages/aspell.scm (aspell)[arguments]: Remove 'wrap-aspell' phase.
* gnu/packages/patches/aspell-default-dict-dir.patch: Add hunk to expand
the right-hand size of '|' in values like "<$FOO|$BAR/baz>". Change
DICT_DIR to refer to "$HOME" on the right-hand side.
See <https://bugs.gnu.org/25836> for background.
* gnu/packages/patches/aspell-default-dict-dir.patch: New file.
* gnu/packages/aspell.scm (aspell)[source](patches): New field.
[native-search-paths]: New field.
* gnu/local.mk (dist_patch_DATA): Add it.