Improved the looks of the progress meter when the file size is between

9999 KB and 100 MB since it then can display the size as XX.X MB instead of
just XX as before.

lib/progress.c

@@ -72,15 +72,23 @@ void time2str(char *r, int t)
    but never longer than 5 columns. Add suffix k, M, G when suitable... */
 char *max5data(double bytes, char *max5)
 {
+#define ONE_KILOBYTE 1024
+#define ONE_MEGABYTE (1024*1024)
+
   if(bytes < 100000) {
     sprintf(max5, "%5d", (int)bytes);
     return max5;
   }
-  if(bytes < (9999*1024)) {
-    sprintf(max5, "%4dk", (int)bytes/1024);
+  if(bytes < (9999*ONE_KILOBYTE)) {
+    sprintf(max5, "%4dk", (int)bytes/ONE_KILOBYTE);
+    return max5;
+  }
+  if(bytes < (100*ONE_MEGABYTE)) {
+    /* 'XX.XM' is good as long as we're less than 100 megs */
+    sprintf(max5, "%2.1fM", bytes/ONE_MEGABYTE);
     return max5;
   }
-  sprintf(max5, "%4dM", (int)bytes/(1024*1024));
+  sprintf(max5, "%4dM", (int)bytes/ONE_MEGABYTE);
   return max5;
 }