[PATCH 1/2] console_codes.4: mention caveats for xterm's ESC ] 50 command

Fonts are only settable if xterm was launched with the right options
(or X11 resources) that would allow this operation.

Signed-off-by: Jan Engelhardt <[email protected]>
---
 man/man4/console_codes.4 | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/man/man4/console_codes.4 b/man/man4/console_codes.4
index 2fa8368e1..534510a4b 100644
--- a/man/man4/console_codes.4
+++ b/man/man4/console_codes.4
@@ -760,7 +760,10 @@ Change log file to
 .I name
 (normally disabled by a compile-time option).
 T}
-ESC ] 50 ; \f[I]fn\f[] ST	Set font to \f[I]fn\f[].
+ESC ] 50 ; \f[I]fn\f[] ST	T{
+Set font to \f[I]fn\f[] (the escape code is normally disabled;
+consult the xterm manpage for the "allowFontOps" setting)
+T}
 .TE
 .P
 It recognizes the following with slightly modified meaning
-- 
2.54.0