compress: Fix off by one in help of --target-level.

The maximal value of a signed 16 bit integer is 32767.

diff --git a/m4/lls/filter_cmd.suite.m4 b/m4/lls/filter_cmd.suite.m4
index d269d2374176adef783ca1f78ee0ac4832eb86da..ddc5f1cb3c191df7d472732f76af40645f02ccf6 100644 (file)
--- a/m4/lls/filter_cmd.suite.m4
+++ b/m4/lls/filter_cmd.suite.m4
@@ -49,7 +49,7 @@ caption = filters
                default_val = 6
        [option target-level]
                short_opt = t
-               summary = target signal level (0-32768)
+               summary = target signal level (0-32767)
                typestr = level
                arg_info = required_arg
                arg_type = uint32