refactor(info,man): use _comp_compgen for _comp_split/compgen

Author: akinomyoga

completions/info

@@ -63,7 +63,7 @@ _comp_cmd_info()
             # strip suffix from info pages
             COMPREPLY=("${COMPREPLY[@]%.@(gz|bz2|xz|lzma)}")
             # weed out info dir file with -X 'dir'
-            _comp_split -l COMPREPLY "$(compgen -W '"${COMPREPLY[@]%.*}"' -X '@(|dir)' -- "${cur//\\\\/}")"
+            _comp_compgen -c "${cur//\\\\/}" -- -W '"${COMPREPLY[@]%.*}"' -X '@(|dir)'
         fi
     fi
 } &&

completions/man

@@ -88,7 +88,7 @@ _comp_cmd_man()
             COMPREPLY=("${COMPREPLY[@]##*/?(:)}")
             # strip suffix from man pages
             COMPREPLY=("${COMPREPLY[@]%$comprsuffix}")
-            _comp_split -l COMPREPLY "$(compgen -W '"${COMPREPLY[@]%.*}"' -X '' -- "${cur//\\\\/}")"
+            _comp_compgen -c "${cur//\\\\/}" -- -W '"${COMPREPLY[@]%.*}"' -X ''
         fi
     fi