fix(autotools): quote words

!fixup aclocal reword autoconf/automake

Author: akinomyoga

completions/aclocal

@@ -20,7 +20,7 @@ _comp_cmd_aclocal()
         --warnings | -W)
             local cats=(syntax unsupported)
             COMPREPLY=($(compgen -W \
-                '${cats[@]} ${cats[@]/#/no-} all none error' -- "$cur"))
+                '"${cats[@]}" "${cats[@]/#/no-}" all none error' -- "$cur"))
             return
             ;;
     esac

completions/autoconf

@@ -16,7 +16,7 @@ _comp_cmd_autoconf()
         --warnings | -W)
             local cats=(cross obsolete syntax)
             COMPREPLY=($(compgen -W \
-                '${cats[@]} ${cats[@]/#/no-} all none error' -- "$cur"))
+                '"${cats[@]}" "${cats[@]/#/no-}" all none error' -- "$cur"))
             return
             ;;
         --prepend-include | -B | --include | -I)

completions/automake

@@ -12,7 +12,7 @@ _comp_cmd_automake()
         --warnings | -W)
             local cats=(gnu obsolete override portability syntax unsupported)
             COMPREPLY=($(compgen -W \
-                '${cats[@]} ${cats[@]/#/no-} all none error' -- "$cur"))
+                '"${cats[@]}" "${cats[@]/#/no-}" all none error' -- "$cur"))
             return
             ;;
         --libdir)

completions/autoreconf

@@ -13,7 +13,7 @@ _comp_cmd_autoreconf()
             local cats=(cross gnu obsolete override portability syntax
                 unsupported)
             COMPREPLY=($(compgen -W \
-                '${cats[@]} ${cats[@]/#/no-} all none error' -- "$cur"))
+                '"${cats[@]}" "${cats[@]/#/no-}" all none error' -- "$cur"))
             return
             ;;
         --prepend-include | -B | --include | -I)