- minor fix in help

perl/exit_strategy.pl

@@ -478,7 +478,7 @@ call $0 with following options
         --enable-sqldump | dumps a given database as SQL to STDOUT
 
         create an exit-DB:
-        $0 [--recovery] [--sqlitedb-file=FILE] DIR
+        $0 [--recovery] [--sqlitedb-file=FILE] DIR [DIR…]
 
         dump an exit-DB as SQL
         $0 [--sqlitedb-file=FILE] --enable-sqldump
@@ -498,7 +498,7 @@ if (defined $flag_sqldump) {
   exit;
 }
 if ($#ARGV_tail < 0) {
-  die "you need  a directory as argument\n";
+  die "you need at least a directory as argument\n";
 }
 
 say "preparing SQL";
@@ -547,4 +547,3 @@ say "\rprocessed $count uniq IEs
 say "";
 
 1;
-