Squelch a few warnings from old GCC.

Debian 6.0.10 i386
gcc (Debian 4.4.5-8) 4.4.5

print-erspan.c: In function 'erspan_i_ii_print':
print-erspan.c:71: warning: declaration of 'index' shadows a global
  declaration
/usr/include/string.h:487: warning: shadowed declaration is here
print-radius.c: In function 'print_attr_location_information':
print-radius.c:1093: warning: declaration of 'index' shadows a global
  declaration
/usr/include/string.h:487: warning: shadowed declaration is here
print-radius.c: In function 'print_attr_location_data':
print-radius.c:1137: warning: declaration of 'index' shadows a global
  declaration
/usr/include/string.h:487: warning: shadowed declaration is here

Author: infrastation

print-erspan.c

@@ -68,7 +68,7 @@
 void
 erspan_i_ii_print(netdissect_options *ndo, uint16_t flags, const u_char *bp, u_int len)
 {
-	uint32_t hdr, ver, vlan, cos, en, sid, index;
+	uint32_t hdr, ver, vlan, cos, en, sid;
 
 	ndo->ndo_protocol = "erspan";
 	nd_print_protocol(ndo);
@@ -136,8 +136,8 @@ erspan_i_ii_print(netdissect_options *ndo, uint16_t flags, const u_char *bp, u_i
 	len -= 4;
 
 	if (ndo->ndo_vflag) {
-		index = (hdr & ERSPAN2_INDEX_MASK) >> ERSPAN2_INDEX_SHIFT;
-		ND_PRINT(" index %u", index);
+		ND_PRINT(" index %u",
+		         (hdr & ERSPAN2_INDEX_MASK) >> ERSPAN2_INDEX_SHIFT);
 	}
 
 	ND_PRINT(": ");

print-radius.c

@@ -1090,12 +1090,12 @@ static void
 print_attr_location_information(netdissect_options *ndo,
                     const u_char *data, u_int length, u_short attr_code _U_)
 {
-   uint16_t index;
+   uint16_t idx;
    uint8_t code, entity;
 
    ND_ICHECK_U(length, <, 21);
 
-   index = GET_BE_U_2(data);
+   idx = GET_BE_U_2(data);
    data += 2;
 
    code = GET_U_1(data);
@@ -1105,7 +1105,7 @@ print_attr_location_information(netdissect_options *ndo,
    data++;
 
    ND_PRINT("index %u, code %s, entity %s, ",
-       index,
+       idx,
        tok2str(location_information_code_vector, "Unknown (%u)", code),
        tok2str(location_information_entity_vector, "Unknown (%u)", entity)
    );
@@ -1134,13 +1134,10 @@ static void
 print_attr_location_data(netdissect_options *ndo,
                     const u_char *data, u_int length, u_short attr_code _U_)
 {
-   uint16_t index;
-
    ND_ICHECK_U(length, <, 3);
 
-   index = GET_BE_U_2(data);
+   ND_PRINT("index %u, location", GET_BE_U_2(data));
    data += 2;
-   ND_PRINT("index %u, location", index);
 
    /* The Location field of the String field of the Location-Data attribute
     * can have two completely different structures depending on the value of