tcp_wrappers: fix compilation under glibc

libnsl seems to not be a library that comes with glibc.

Remove excess whitespace.

Refresh patches.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

libs/tcp_wrappers/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=tcp_wrappers
 PKG_VERSION:=7.6
-PKG_RELEASE:=3
+PKG_RELEASE:=4
 
 PKG_SOURCE:=$(PKG_NAME)_$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=ftp://ftp.porcupine.org/pub/security
@@ -32,11 +32,7 @@ endef
 
 TARGET_CFLAGS += $(FPIC) -Wall
 
-ifeq ($(CONFIG_USE_MUSL),)
-TARGET_EXTRA_LIBS:=LIBS=-lnsl
-endif
-
-define Build/Compile	
+define Build/Compile
 	$(MAKE) -C $(PKG_BUILD_DIR) \
 		$(TARGET_CONFIGURE_OPTS) \
 		OPT_CFLAGS="$(TARGET_CFLAGS)" \
@@ -53,7 +49,7 @@ define Build/Compile
 		tidy all
 endef
 
-define Build/InstallDev	
+define Build/InstallDev
 	$(INSTALL_DIR) $(1)/usr/include
 	$(CP) $(PKG_BUILD_DIR)/tcpd.h $(1)/usr/include/
 	$(INSTALL_DIR) $(1)/usr/lib
@@ -61,9 +57,9 @@ define Build/InstallDev
 	$(CP) $(PKG_BUILD_DIR)/shared/libwrap.so* $(1)/usr/lib/
 endef
 
-define Package/libwrap/install	
+define Package/libwrap/install
 	$(INSTALL_DIR) $(1)/usr/lib
 	$(CP) $(PKG_BUILD_DIR)/shared/libwrap.so.* $(1)/usr/lib/
 endef
-	
+
 $(eval $(call BuildPackage,libwrap))