Merge branch 'master' of github.com:hasindu2008/slow5tools

Author: hasindu2008

src/stats.c

@@ -79,7 +79,7 @@ int stats_main(int argc, char **argv, struct program_meta *meta){
 
     // Input arguments
     int longindex = 0;
-    char opt;
+    int opt;
 
     // Parse options
     while ((opt = getopt_long(argc, argv, "h", long_opts, &longindex)) != -1) {