nano: improve uci coloring of unterminated strings

Improve the uci file coloring with nano-full.
Show unterminated strings more clearly (lightmagenta vs. white)

Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>

utils/nano/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=nano
 PKG_VERSION:=8.7.1
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
 PKG_SOURCE_URL:=@GNU/nano

utils/nano/files/uci.nanorc

@@ -9,6 +9,9 @@ color green "\<(package|config|option|list)\>"
 # Comments.
 color cyan "(^|[[:blank:]])#.*"
 
+# Unterminated strings.
+color lightmagenta ""([^"\]|\\.)*[^"\]|'([^'\]|\\.)*[^'\]"
+
 # Strings.
 color yellow ""([^"\]|\\.)*"|'([^'\]|\\.)*'"