screenrc: Minor documentation update.

diff --git a/screenrc.in b/screenrc.in
index e495774ec453ab094c5808549283dfea14270c46..a01e10b15df4d2db5496e2bb12b6d64fd3d73b27 100644 (file)
--- a/screenrc.in
+++ b/screenrc.in
@@ -38,7 +38,8 @@ defscrollback 10000
 # Ignore case when searching.
 ignorecase on
 
-# I prefer zsh as my shell.
+# I prefer zsh as my shell. GNU screen displays a warning if the shell isn't
+# available.
 shell zsh