dash: bump to version 0.5.7-2 and style cleanup

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/dash/dash.mk

@@ -3,10 +3,11 @@
 # dash
 #
 #############################################################
-DASH_VERSION:=0.5.5.1
-DASH_SOURCE:=dash_$(DASH_VERSION).orig.tar.gz
-DASH_SITE:=$(BR2_DEBIAN_MIRROR)/debian/pool/main/d/dash
-DASH_PATCH:=dash_$(DASH_VERSION)-6.diff.gz
+
+DASH_VERSION = 0.5.7
+DASH_SOURCE = dash_$(DASH_VERSION).orig.tar.gz
+DASH_SITE = $(BR2_DEBIAN_MIRROR)/debian/pool/main/d/dash
+DASH_PATCH = dash_$(DASH_VERSION)-2.diff.gz
 
 define DASH_INSTALL_TARGET_CMDS
 	cp -a $(@D)/src/dash $(TARGET_DIR)/bin/dash