treewide: fix shellscript syntax errors/typos

Fix multiple syntax errors in shelscripts (of packages only)
These errors were causing many conditions to not working properly

Signed-off-by: Lorenzo Santina <lorenzo.santina@edu.unito.it>
[increase PKG_RELEASE, drop command substitution from directip.sh]
Signed-off-by: Mathias Kresin <dev@kresin.em>

package/network/services/hostapd/Makefile

@@ -7,7 +7,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=hostapd
-PKG_RELEASE:=4
+PKG_RELEASE:=5
 
 PKG_SOURCE_URL:=http://w1.fi/hostap.git
 PKG_SOURCE_PROTO:=git

package/network/services/hostapd/files/hostapd.sh

@@ -627,7 +627,7 @@ wpa_supplicant_add_network() {
 		scan_ssid=""
 	}
 
-	[[ "$_w_mode" = "adhoc" -o "$_w_mode" = "mesh" ]] && append network_data "$_w_modestr" "$N$T"
+	[ "$_w_mode" = "adhoc" -o "$_w_mode" = "mesh" ] && append network_data "$_w_modestr" "$N$T"
 
 	case "$auth_type" in
 		none) ;;