fix typo in help text

diff --git a/include/usage.h b/include/usage.h
index e3905eb..b19803d 100644 (file)
--- a/include/usage.h
+++ b/include/usage.h
@@ -1293,7 +1293,7 @@
      "\nOptions:" \
      "\n       -v      Log also to stderr" \
      "\n       -w      Allow upload" \
-     "\n       DIR     Change root to ths directory" \
+     "\n       DIR     Change root to this directory" \
 
 #define ftpget_trivial_usage \
        "[options] remote-host local-file remote-file"