Fix langevin changed <utils.h> to utils.h

doc/src/fix_langevin.txt

@@ -327,7 +327,9 @@ This fix can ramp its target temperature over multiple runs, using the
 
 This fix is not invoked during "energy minimization"_minimize.html.
 
-[Restrictions:] For {gjf} do not choose damp=dt/2. {gjf} is not compatible
+[Restrictions:]
+
+For {gjf} do not choose damp=dt/2. {gjf} is not compatible
 with run_style respa. 
 
 [Related commands:]

src/fix_langevin.cpp

@@ -23,7 +23,6 @@
 #include <mpi.h>
 #include <cmath>
 #include <cstring>
-#include <utils.h>
 #include "math_extra.h"
 #include "atom.h"
 #include "atom_vec_ellipsoid.h"
@@ -39,6 +38,7 @@
 #include "memory.h"
 #include "error.h"
 #include "group.h"
+#include "utils.h"
 
 using namespace LAMMPS_NS;
 using namespace FixConst;