doc/curl.1: fix sentence with ending for -# option

Try to be a little more descriptive about the effect of this flag,
rather than parroting what was said in the paragraph just above.

docs/curl.1

@@ -110,7 +110,8 @@ the --option version of them. (This concept with --no options was added in
 7.19.0. Previously most options were toggled on/off on repeated use of the
 same command line option.)
 .IP "-#, --progress-bar"
-Make curl display progress information as a progress bar instead of the
+Make curl display progress as a simple progress bar instead of the standard,
+more informational, meter.
 .IP "-0, --http1.0"
 (HTTP) Forces curl to issue its requests using HTTP 1.0 instead of using its
 internally preferred: HTTP 1.1.