Fix elvish 0.18 compatibility

completion.elv

@@ -5,5 +5,5 @@ use ./completion/kcp
 use ./completion/mpv
 use ./completion/pacman
 use ./completion/ssh
-#use ./completion/sudo
+use ./completion/sudo
 use ./completion/use

completion/arc.elv

@@ -27,7 +27,7 @@ fn -comp-commands {
 fn -comp-inline-files {|archive|
   try {
     arc ls $archive | eawk {|_ @argv| put $argv[-1] }
-  } except e {
+  } catch e {
     nop
   }
 }

completion/ssh.elv

@@ -46,7 +46,7 @@ fn -complete-remote-dir {|port address dir|
     ssh -p $port $address $cmd | each {|f|
       put (printf '%s:%s' $address $f)
     }
-  } except e { }
+  } catch e { }
 }
 
 fn -complete-args {|hosts cmd @argv|

mods/file.elv

@@ -40,7 +40,7 @@ fn -s {|&sort=$false &type=exact @motive|
         $f $m | peach {|e|
           set result[$e] = $nil
         }
-      } except e { }
+      } catch e { }
     } $motive
   }
   -r $sort $result

mods/format.elv

@@ -38,7 +38,7 @@ fn int {|v|
       var n = (math:trunc $v)
       var s @_ = (str:split '.' (to-string $n))
       put $s
-    } except e {
+    } catch e {
       fail (printf '%s n’est pas un nombre' $v)
     }
   } elif (eq $k 'number') {