`ls`: move width checking to before filename printing.

this matches gnu/posix `ls` more (maybe?).
also it looks better imo

src/ls.c

@@ -168,6 +168,11 @@ int main(int argc, char **argv) {
   strcpy(oldwd, wd);
   int currLen = 0;
   for (i = 0; i < n; i++) {
+    currLen += strlen(words[i]);
+    if (currLen >= maxLen) {
+      printf("\n");
+      currLen = 0;
+    }
     if (colour == false) {
       printf("%s  ", words[i]);
     } else {
@@ -187,11 +192,6 @@ int main(int argc, char **argv) {
         printf("%s  ", words[i]);
       }
     }
-    currLen += strlen(words[i]);
-    if (currLen >= maxLen) {
-      printf("\n");
-      currLen = 0;
-    }
   }
   free(out);
   printf("\n");