diff --git a/src/board.c b/src/board.c
index 5312439..da2724b 100644
--- a/src/board.c
+++ b/src/board.c
@@ -39,23 +39,23 @@ void player_board(void) {
   }
   else if(vect_dist(&player->solid->pos, &p->solid->pos) >
           p->ship->gfx_space->sw * PILOT_SIZE_APROX) {
-    player_message("You are too far away to board your target");
+    player_message("You are too far away to board your target.");
     return;
   }
   else if((pow2(VX(player->solid->vel)-VX(p->solid->vel)) +
            pow2(VY(player->solid->vel)-VY(p->solid->vel))) >
           (double)pow2(MAX_HYPERSPACE_VEL)) {
-    player_message("You are going too fast to board the ship");
+    player_message("You are going too fast to board the ship.");
     return;
   }
   else if(pilot_isFlag(p, PILOT_BOARDED)) {
-    player_message("Your target cannot be boarded again");
+    player_message("Your target cannot be boarded again.");
     return;
   }
 
   /* Pilot will be boarded. */
   pilot_setFlag(p, PILOT_BOARDED);
-  player_message("Boarding ship %s", p->name);
+  player_message("Boarding ship %s.", p->name);
 
   /* Create the boarding window. */
   board_wid = window_create("Boarding", -1, -1, BOARDING_WIDTH, BOARDING_HEIGHT);
diff --git a/src/land.c b/src/land.c
index 0e1b4de..9d61d9d 100644
--- a/src/land.c
+++ b/src/land.c
@@ -1121,7 +1121,7 @@ void takeoff(void) {
   /* Time goes by, triggers hook before takeoff. */
   ltime_inc(RNG(2*LTIME_UNIT_LENGTH, 3*LTIME_UNIT_LENGTH));
   lt = ltime_pretty(0);
-  player_message("taking off from %s on %s", land_planet->name, lt);
+  player_message("taking off from %s on %s.", land_planet->name, lt);
   free(lt);
 
   /* Initialize the new space. */
diff --git a/src/player.c b/src/player.c
index 6197e0b..825686a 100644
--- a/src/player.c
+++ b/src/player.c
@@ -1251,7 +1251,7 @@ void player_setRadarRel(int mod) {
   if(gui.radar.res > RADAR_RES_MAX) gui.radar.res = RADAR_RES_MAX;
   else if(gui.radar.res < RADAR_RES_MIN) gui.radar.res = RADAR_RES_MIN;
 
-  player_message("Radar set to %dx", (int)gui.radar.res);
+  player_message("Radar set to %dx.", (int)gui.radar.res);
 }
 
 /* Get the next secondary weapon. */
@@ -1329,12 +1329,12 @@ void player_land(void) {
       return;
     }
     else if(vect_dist(&player->solid->pos, &planet->pos) > planet->gfx_space->sw) {
-      player_message("You are too far away to land on %s", planet->name);
+      player_message("You are too far away to land on %s.", planet->name);
       return;
     }
     else if((pow2(VX(player->solid->vel)) + pow2(VY(player->solid->vel))) >
             (double)pow2(MAX_HYPERSPACE_VEL))  {
-      player_message("You are going too fast to land on %s", planet->name);
+      player_message("You are going too fast to land on %s.", planet->name);
       return;
     }
     land(planet); /* Land the player. */
@@ -1392,7 +1392,7 @@ void player_jump(void) {
   else if(i == -3)
     player_message("You do not have enough fuel to hyperspace jump.");
   else
-    player_message("Preparing for hyperspace");
+    player_message("Preparing for hyperspace.");
 }
 
 /* Player actually broke hyperspace (Let's enter a new system). */
diff --git a/src/rng.c b/src/rng.c
index 3e57db6..0f335ea 100644
--- a/src/rng.c
+++ b/src/rng.c
@@ -11,9 +11,7 @@
 
 #include "lephisto.h"
 #include "rng.h"
-#include "log.h"
 
-/* Mersenne twister state. */
 static uint32_t MT[624];
 static uint32_t mt_y;
 static int mt_pos = 0;  /* Current number. */
@@ -204,11 +202,11 @@ double NormalInverse( double p ) {
   }
   else if(p == 0.) {
     errno = ERANGE;
-    return -HUGE_VAL /* minus "infinity". */;
+    return -HUGE_VAL /* Minus "infinity". */;
   }
   else if(p == 1.) {
     errno = ERANGE;
-    return HUGE_VAL /* "infinity". */;
+    return HUGE_VAL /* "Infinity". */;
   }
   /* Use different aproximations for different parts. */
   else if(p < LOW) {
diff --git a/src/space.c b/src/space.c
index 49c71d5..9d48a75 100644
--- a/src/space.c
+++ b/src/space.c
@@ -412,7 +412,7 @@ void space_init(const char* sysname) {
     cur_system = systems_stack+i;
 
     lt = ltime_pretty(0);
-    player_message("Entering System %s on %s", sysname, lt);
+    player_message("Entering System %s on %s.", sysname, lt);
     free(lt);
 
     /* Handle background. */