scripted-diff: Remove trailing whitespaces

-BEGIN VERIFY SCRIPT-

sed --in-place'' --regexp-extended 's/[[:space:]]+$//g' $(git grep -I --files-with-matches --extended-regexp '[[:space:]]+$' -- src test  ':!*.svg' ':!src/crypto/sha256_sse4*' ':!src/leveldb' ':!src/qt/locale' ':!src/secp256k1' ':!src/univalue')

-END VERIFY SCRIPT-

src/test/prevector_tests.cpp

@@ -36,7 +36,7 @@ class prevector_tester {
         {
             local_check(a == b);
         }
-    void local_check(bool b) 
+    void local_check(bool b)
     {
         passed &= b;
     }