[library-web] fix comment

[Frederic Peters <fpeters src gnome org>]

commit a5cac69036999bbf4213e93aca5b687d6ff58fa9
Author: Frédéric Péters <fpeters 0d be>
Date:   Sat Sep 6 13:04:45 2014 +0200

    fix comment

 data/xslt/common_indexes.xsl |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/data/xslt/common_indexes.xsl b/data/xslt/common_indexes.xsl
index 3fcaaa5..db815e0 100644
--- a/data/xslt/common_indexes.xsl
+++ b/data/xslt/common_indexes.xsl
@@ -231,7 +231,7 @@ $lang]"/>
   <!-- in most cases the developer documentation doesn't have proper
        translation infrastructure, therefore we do not display the
        missing language warning as it would appear on most documents
-       and clutter the page way too much --!>
+       and clutter the page way too much -->
 
 <xsl:if test="substring($lang, 1, 2) != substring(@lang, 1, 2) and @path">
 <p class="no-translation">