Fix parsing issues in board_config.mk

Soong's "androidmk" makefile parser couldn't parse
board_config.mk due to these issues.

Fixes: 201440410
Test: Manually
Change-Id: I2dc298fb969a140e14f704a8c9f9f2ec98be7bc0
diff --git a/core/board_config.mk b/core/board_config.mk
index b4e2b91..f4a0656 100644
--- a/core/board_config.mk
+++ b/core/board_config.mk
@@ -751,7 +751,7 @@
 
 ifdef BOARD_VNDK_VERSION
   ifeq ($(BOARD_VNDK_VERSION),$(PLATFORM_VNDK_VERSION))
-    $(error BOARD_VNDK_VERSION is equal to PLATFORM_VNDK_VERSION; use BOARD_VNDK_VERSION := current))
+    $(error BOARD_VNDK_VERSION is equal to PLATFORM_VNDK_VERSION; use BOARD_VNDK_VERSION := current)
   endif
   ifneq ($(BOARD_VNDK_VERSION),current)
     $(call check_vndk_version,$(BOARD_VNDK_VERSION))
@@ -809,8 +809,8 @@
     $(KATI_deprecated_var $(m),Please convert to Soong)))
 
 $(if $(filter true,$(BUILD_BROKEN_USES_BUILD_COPY_HEADERS)),\
-  $(KATI_deprecated_var BUILD_COPY_HEADERS,See $(CHANGES_URL)#copy_headers),\
-  $(KATI_obsolete_var BUILD_COPY_HEADERS,See $(CHANGES_URL)#copy_headers))
+  $(KATI_deprecated_var BUILD_COPY_HEADERS,See $(CHANGES_URL)\#copy_headers),\
+  $(KATI_obsolete_var BUILD_COPY_HEADERS,See $(CHANGES_URL)\#copy_headers))
 
 $(foreach m,$(filter-out BUILD_COPY_HEADERS,$(DEFAULT_ERROR_BUILD_MODULE_TYPES)),\
   $(if $(filter true,$(BUILD_BROKEN_USES_$(m))),\