Trivial whitespace cleanups

Delete trailing whitespace at the ends of lines;
ensure files have newlines at the end.

Signed-off-by: Dan Cross <patchdev@fat-dragon.org>

src/hashmap/hashmap.c

@@ -393,4 +393,4 @@ int hashmap_length(map_t in) {
 		return m->size;
 	else
 		return 0;
-}
+}

src/hashmap/main.c

@@ -73,4 +73,4 @@ int main(char *argv, int argc) {
 	hashmap_free(mymap);
 
 	return 1;
-}
+}