sync fix temp/rescale to upstream

src/fix_temp_rescale.cpp

@@ -37,18 +37,18 @@ enum{CONSTANT,EQUAL};
 /* ---------------------------------------------------------------------- */
 
 FixTempRescale::FixTempRescale(LAMMPS *lmp, int narg, char **arg) :
-  Fix(lmp, narg, arg)
+  Fix(lmp, narg, arg),
+  tstr(NULL), id_temp(NULL), tflag(0)
 {
   if (narg < 8) error->all(FLERR,"Illegal fix temp/rescale command");
 
-  dynamic_group_allow = 1;
-
   nevery = force->inumeric(FLERR,arg[3]);
   if (nevery <= 0) error->all(FLERR,"Illegal fix temp/rescale command");
 
   scalar_flag = 1;
   global_freq = nevery;
   extscalar = 1;
+  dynamic_group_allow = 1;
 
   tstr = NULL;
   if (strstr(arg[4],"v_") == arg[4]) {
@@ -140,7 +140,7 @@ void FixTempRescale::end_of_step()
 
   if (temperature->dof < 1) return;
 
-  // protect against division by zero.
+  // protect against division by zero
 
   if (t_current == 0.0)
     error->all(FLERR,"Computed temperature for fix temp/rescale cannot be 0.0");