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, 0 insertions, 1 deletions

diff --git a/bin/sh/var.h b/bin/sh/var.h
index 4dafa2c..9c792c8 100644
--- a/bin/sh/var.h
+++ b/bin/sh/var.h
@@ -108,7 +108,6 @@ void listsetvar(struct strlist *);
 char *lookupvar(const char *);
 char *bltinlookup(const char *, int);
 char **environment(void);
-void shprocvar(void);
 int showvarscmd(int, char **);
 int exportcmd(int, char **);
 int localcmd(int, char **);