patch 7.4.1027
Problem:    No support for binary numbers.
Solution:   Add "bin" to nrformats. (Jason Schulz)
diff --git a/src/misc2.c b/src/misc2.c
index f13a80e..9f8d7ad 100644
--- a/src/misc2.c
+++ b/src/misc2.c
@@ -2780,7 +2780,7 @@
 	    bp += 3;	/* skip t_xx, xx may be '-' or '>' */
 	else if (STRNICMP(bp, "char-", 5) == 0)
 	{
-	    vim_str2nr(bp + 5, NULL, &l, TRUE, TRUE, NULL, NULL, 0);
+	    vim_str2nr(bp + 5, NULL, &l, STR2NR_ALL, NULL, NULL, 0);
 	    bp += l + 5;
 	    break;
 	}
@@ -2812,7 +2812,7 @@
 						 && VIM_ISDIGIT(last_dash[6]))
 	    {
 		/* <Char-123> or <Char-033> or <Char-0x33> */
-		vim_str2nr(last_dash + 6, NULL, NULL, TRUE, TRUE, NULL, &n, 0);
+		vim_str2nr(last_dash + 6, NULL, NULL, STR2NR_ALL, NULL, &n, 0);
 		key = (int)n;
 	    }
 	    else