remove trailing whitespace

Author: ruifonseca

examples/aurora.psh

@@ -27,7 +27,7 @@ fun calc_boundaries() {
     let chunk_size = HEIGHT _/ NTHREADS;
     let rem = HEIGHT % NTHREADS;
     let var limit = 0;
-    
+
     let boundaries = [];
     for (let var i=0; i<NTHREADS; ++i) {
         limit += (chunk_size + ((i < rem) ? 1 : 0));