8234264: Incorrect 8047434 JDK 8 backport in 8219677

Summary: Reverse uses of fork_and_exec() second argument in vError.cpp.
Reviewed-by: sgehwolf, simonis

src/share/vm/utilities/vmError.cpp

@@ -1060,7 +1060,7 @@ void VMError::report_and_die() {
       out.print_raw   (cmd);
       out.print_raw_cr("\" ...");
 
-      if (os::fork_and_exec(cmd, true) < 0) {
+      if (os::fork_and_exec(cmd) < 0) {
         out.print_cr("os::fork_and_exec failed: %s (%d)", strerror(errno), errno);
       }
     }
@@ -1147,7 +1147,7 @@ void VM_ReportJavaOutOfMemory::doit() {
 #endif
     tty->print_cr("\"%s\"...", cmd);
 
-    if (os::fork_and_exec(cmd) < 0) {
+    if (os::fork_and_exec(cmd, true) < 0) {
       tty->print_cr("os::fork_and_exec failed: %s (%d)", strerror(errno), errno);
     }
   }