[Bug 210927] x11/yelp: Does not display man pages, Illegal option -Z

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=210927

--- Comment #1 from Rares Vernica <rvernica at gmail.com> ---
I tried to fix this, but I got stuck. Here is what I tried.

I patched the "libyelp/yelp-man-parse.c" file:

--- a/libyelp/yelp-man-parser.c
+++ b/libyelp/yelp-man-parser.c
@@ -369,7 +369,7 @@ get_troff (gchar *path, GError **error)
 {
     gint ystdout;
     GError *err = NULL;
-    const gchar *argv[] = { "man", "-Z", "-Tutf8", "-EUTF-8", path, NULL };
+    const gchar *argv[] = { "man", "-t", path, NULL };
     gchar **my_argv;

     /* g_strdupv() should accept a "const gchar **". */

I replace "-Z" with "-t" and removed "-T" and "-E" arguments.

Now, when I run it, I don't get any error on the "man" arguments on the
console, but in the "yelp" window, I get:

  Unknown Error
  Wrong 'x res' line from troff: %%Creator: groff version 1.19.2

I am not sure how to proceed from here, but I am willing to try more.

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