Correct control characters in man page
--- a/man/func/gl_get_line.in
+++ b/man/func/gl_get_line.in
@@ -1656,7 +1656,7 @@
 had been written to the terminal.  Such a signal handler,
 when it does write to the terminal, should be sure to start
 a new line at the start of its first write, by writing a
-'\\n' character, and should be sure to leave the cursor on a
+\f3\\n\f1 character, and should be sure to leave the cursor on a
 new line before returning. If the signal arrives while the
 user is entering a line that only occupies a signal terminal
 line, or if the cursor is on the last terminal line of a
