Fix typo and spaces with adjustments from me.

config.def.h

@@ -3,13 +3,13 @@
  * Use "cat -v" to figure out favorite key combination.
  *
  * lines is the number of lines scrolled up or down.
- * If lines is negative, its the fraction of the terminal size.
+ * If lines is negative, it's the fraction of the terminal size.
  */
 
 struct rule rules[] = {
 	/* sequence     event        lines */
-	{"\033[5;2~",	SCROLL_UP,   -1},	/* [Shift] + [PageUP] */
-	{"\033[6;2~",	SCROLL_DOWN, -1},	/* [Shift] + [PageDown] */
-	{"\031",	SCROLL_UP,    1},	/* mouse wheel up */
-	{"\005",	SCROLL_DOWN,  1}	/* mouse wheel Down */
+	{"\033[5;2~",   SCROLL_UP,   -1},       /* [Shift] + [PageUP] */
+	{"\033[6;2~",   SCROLL_DOWN, -1},       /* [Shift] + [PageDown] */
+	{"\031",        SCROLL_UP,    1},       /* mouse wheel up */
+	{"\005",        SCROLL_DOWN,  1},       /* mouse wheel Down */
 };