vi: make "g<key>" error message less likely to show garbage

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

diff --git a/editors/vi.c b/editors/vi.c
index 974f9978b90b5df4123d09195b071ece9662585a..c142dacd7f997f10fac6acd73f108777905e8730 100644 (file)
--- a/editors/vi.c
+++ b/editors/vi.c
@@ -3933,7 +3933,9 @@ static void do_cmd(int c)
                c1 = get_one_char();
                if (c1 != 'g') {
                        buf[0] = 'g';
-                       buf[1] = c1; // TODO: if Unicode?
+                       // c1 < 0 if the key was special. Try "g<up-arrow>"
+                       // TODO: if Unicode?
+                       buf[1] = (c1 >= 0 ? c1 : '*');
                        buf[2] = '\0';
                        not_implemented(buf);
                        break;