sh: Various warning fixes (from WARNS=6 NO_WERROR=1):

- const
- initializations to silence -Wuninitialized (it was safe anyway)
- remove nested extern declarations
- rename "index" locals to "idx"

1 files changed, 1 insertions, 1 deletions

diff --git a/bin/sh/mystring.c b/bin/sh/mystring.c
index 6eaacb3..53d703d 100644
--- a/bin/sh/mystring.c
+++ b/bin/sh/mystring.c
@@ -108,7 +108,7 @@ int
 number(const char *s)
 {
 	if (! is_number(s))
-		error("Illegal number: %s", (char *)s);
+		error("Illegal number: %s", s);
 	return atoi(s);
 }