lib/dpkg.c: Also use SIZEOFHASHMAP for the sources hashes

Commit 7bba1173e0 increased the size of the
binary package and virtual packages hash and introduced the constant
SIZEOFHASHMAP to ease further changes.

Apply the same change to the source package and source note hashes

Signed-off-by: Adam D. Barratt <adam@adam-barratt.org.uk>

lib/dpkg.c

@@ -1347,7 +1347,7 @@ int checkinstallable(dpkg_packages *pkgs, collpackagelist *instoneof) {
 
 /******************/
 
-HASH_IMPL(sourcetbl, char *, dpkg_source *, 14, strhash, strcmp,
+HASH_IMPL(sourcetbl, char *, dpkg_source *, SIZEOFHASHMAP, strhash, strcmp,
 	  KEEP(char*), free_source);
 
 static dpkg_sources *read_sources_file(char *filename, int n_arches) {
@@ -1561,7 +1561,7 @@ void write_directory(char *dir, dpkg_sources *srcs) {
 
 /*********************/
 
-HASH_IMPL(sourcenotetbl, char *, dpkg_source_note *, 14, strhash, strcmp,
+HASH_IMPL(sourcenotetbl, char *, dpkg_source_note *, SIZEOFHASHMAP, strhash, strcmp,
 	  KEEP(char*), free_source_note);
 
 dpkg_source_note *new_source_note(dpkg_source *src, int n_arches) {