Add more information to the header of the exact gravity files.

src/engine.c

@@ -164,8 +164,8 @@ void engine_make_hierarchical_tasks(struct engine *e, struct cell *c) {
 
     /* Add the sort task. */
     if (is_with_hydro) {
-      c->sorts =
-          scheduler_addtask(s, task_type_sort, task_subtype_none, 0, 0, c, NULL);
+      c->sorts = scheduler_addtask(s, task_type_sort, task_subtype_none, 0, 0,
+                                   c, NULL);
     }
 
     /* Local tasks only... */
@@ -173,8 +173,8 @@ void engine_make_hierarchical_tasks(struct engine *e, struct cell *c) {
 
       /* Add the drift task. */
       if (is_with_hydro) {
-	c->drift_part = scheduler_addtask(s, task_type_drift_part,
-					  task_subtype_none, 0, 0, c, NULL);
+        c->drift_part = scheduler_addtask(s, task_type_drift_part,
+                                          task_subtype_none, 0, 0, c, NULL);
       }
 
       /* Add the two half kicks */

src/gravity.c

@@ -559,7 +559,9 @@ void gravity_exact_force_check(struct space *s, const struct engine *e,
     fprintf(file_exact, "# G= %16.8e\n", e->physical_constants->const_newton_G);
     fprintf(file_exact, "# N= %d\n", SWIFT_GRAVITY_FORCE_CHECKS);
     fprintf(file_exact, "# epsilon=%16.8e\n", e->gravity_properties->epsilon);
-    fprintf(file_exact, "# theta=%16.8e\n", e->gravity_properties->theta_crit);
+    fprintf(file_exact, "# periodic= %d\n", s->periodic);
+    fprintf(file_exact, "# Git Branch: %s\n", git_branch());
+    fprintf(file_exact, "# Git Revision: %s\n", git_revision());
     fprintf(file_exact, "# %16s %16s %16s %16s %16s %16s %16s\n", "id",
             "pos[0]", "pos[1]", "pos[2]", "a_exact[0]", "a_exact[1]",
             "a_exact[2]");