[gssapi/gssproxy] 090aa9: Typo doc fix.

[Simon Josefsson]

Branch: refs/heads/main
  Home:   https://github.com/gssapi/gssproxy
  Commit: 090aa9442c141e967e6e86455d50bccd2142ab0a
      https://github.com/gssapi/gssproxy/commit/090aa9442c141e967e6e86455d50bccd21...
  Author: Simon Josefsson 
  Date:   2022-09-13 (Tue, 13 Sep 2022)

Changed paths:
    M man/gssproxy.conf.5.xml

Log Message:
  -----------
  Typo doc fix.

Silences Debian lintian typo-in-manual-page.

Signed-off-by: Simon Josefsson