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, 4 insertions, 4 deletions

diff --git a/bin/sh/histedit.c b/bin/sh/histedit.c
index 8240a96..cdde09a 100644
--- a/bin/sh/histedit.c
+++ b/bin/sh/histedit.c
@@ -164,19 +164,19 @@ int
 histcmd(int argc, char **argv)
 {
 	int ch;
-	char *editor = NULL;
+	const char *editor = NULL;
 	HistEvent he;
 	int lflg = 0, nflg = 0, rflg = 0, sflg = 0;
 	int i, retval;
-	char *firststr, *laststr;
+	const char *firststr, *laststr;
 	int first, last, direction;
-	char *pat = NULL, *repl;
+	char *pat = NULL, *repl = NULL;
 	static int active = 0;
 	struct jmploc jmploc;
 	struct jmploc *savehandler;
 	char editfilestr[PATH_MAX];
 	char *volatile editfile;
-	FILE *efp;
+	FILE *efp = NULL;
 	int oldhistnum;
 
 	if (hist == NULL)