Fix a few gcc 8 / scan-build compiler warnings

src/inputs/pipe.c

@@ -322,7 +322,8 @@ pict_tmpfile_recreate(struct pipe_metadata *pm, const char *ext)
   pict_tmpfile_close(pm);
 
   strcpy(pm->pict_tmpfile_path, PIPE_TMPFILE_TEMPLATE);
-  strncpy(pm->pict_tmpfile_path + offset, ext, PIPE_TMPFILE_TEMPLATE_EXTLEN);
+  // Use memcpy instead of strncpy because gcc 8 gives false warnings otherwise
+  memcpy(pm->pict_tmpfile_path + offset, ext, PIPE_TMPFILE_TEMPLATE_EXTLEN);
 
   pm->pict_tmpfile_fd = mkstemps(pm->pict_tmpfile_path, PIPE_TMPFILE_TEMPLATE_EXTLEN);
 

src/library/filescanner_itunes.c

@@ -391,6 +391,7 @@ mfi_id_find(const char *path)
     {
       if (qp.results == 1)
 	{
+	  free(winner); // This is just here to keep scan-build happy
 	  winner = strdup(dbpath);
 	  break;
 	}

src/library/filescanner_playlist.c

@@ -159,6 +159,7 @@ process_regular_file(int pl_id, char *path)
     {
       if (qp.results == 1)
 	{
+	  free(winner); // This is just here to keep scan-build happy
 	  winner = strdup(dbpath);
 	  break;
 	}