TagArchive: add "noexcept"

src/TagArchive.cxx

@@ -26,7 +26,7 @@
 
 bool
 tag_archive_scan(ArchiveFile &archive, const char *path_utf8,
-		 const TagHandler &handler, void *handler_ctx)
+		 const TagHandler &handler, void *handler_ctx) noexcept
 try {
 	Mutex mutex;
 	Cond cond;
@@ -42,7 +42,7 @@ try {
 
 bool
 tag_archive_scan(ArchiveFile &archive, const char *path_utf8,
-		 TagBuilder &builder)
+		 TagBuilder &builder) noexcept
 try {
 	Mutex mutex;
 	Cond cond;

src/TagArchive.hxx

@@ -36,7 +36,7 @@ class TagBuilder;
  */
 bool
 tag_archive_scan(ArchiveFile &archive, const char *path_utf8,
-		 const TagHandler &handler, void *handler_ctx);
+		 const TagHandler &handler, void *handler_ctx) noexcept;
 
 /**
  * Scan the tags of a song file inside an archive.  Invokes matching
@@ -48,6 +48,6 @@ tag_archive_scan(ArchiveFile &archive, const char *path_utf8,
  */
 bool
 tag_archive_scan(ArchiveFile &archive, const char *path_utf8,
-		 TagBuilder &builder);
+		 TagBuilder &builder) noexcept;
 
 #endif