Clean up VSIX generation scripts.

LUFA/StudioIntegration/VSIX/asf-manifest.xml

@@ -3,7 +3,7 @@
     <Org>FourWalledCubicle</Org>
     <ShortName>LUFA</ShortName>
     <Author>Dean Camera</Author>
-    <Description></Description>
+    <Description/>
     <FollowFolderStructure>True</FollowFolderStructure>
   </Identifier>
   <AsfContent Type="zip" Path="contents.zip">

LUFA/StudioIntegration/XSLT/lufa_asfmanifest_transform.xslt

@@ -8,7 +8,8 @@
 
 <!-- Atmel Studio framework VSIX XML transform file -->
 
-
+<!-- Updates an asf-manifest.xml document to add appropriate version
+     information. -->
 <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
 	<xsl:output method="xml" omit-xml-declaration="yes"/>
 

LUFA/StudioIntegration/makefile

@@ -72,8 +72,10 @@ generate_vsix: $(EXTENSION_OUTPUT_XML) $(MODULE_OUTPUT_XML)
 check_filenames: $(MODULE_OUTPUT_XML)
 	@echo Verifying referenced filenames of ASF.xml modules...
 	@for f in `find $(LUFA_ROOT)/../ -name "asf.xml"`; do \
-		xsltproc XSLT/lufa_filelist_transform.xslt $$f | grep -v "^<" | sed -e "/^$$/d" | while read -r i; do \
+		echo "Checking $$f..."; \
-			if ( ! test -f "`dirname $$f`/$$i" ); then \
+		asf_file_dir=`dirname $$f`; \
+		xsltproc XSLT/lufa_filelist_transform.xslt $$f | sed -e "/^$$/d" | while read -r i; do \
+			if ( ! test -f "$$asf_file_dir/$$i" ); then \
 				echo "Source file \"$$i\" referenced in $$f does not exist!"; \
 				exit 1; \
 			fi; \