Update exputil/SLGridMP2.cc

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: The9Cat

exputil/SLGridMP2.cc

@@ -2907,7 +2907,7 @@ void SLGridSlab::compute_table(struct TableSlab* table, int KX, int KY)
 		<< std::setw( 5) << iflag[i]
 		<< std::endl;
 
-      if (VERBOSE and iflag[i] != 0) {
+      if (VERBOSE && iflag[i] != 0) {
 
 	if (iflag[i] > -10) {
 	  cout << std::setw(14) << "x"