Random minor flashrom fixes

- Properly escape '-' chars in manpage.
 
 - Fix typo in chipset_enable.c.

 - Drop useless 'return' in chip_readn().

 - Random other whitespace or cosmetic fixes.

Corresponding to flashrom svn r636.

Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>

chipset_enable.c

@@ -1059,7 +1059,7 @@ int chipset_flash_enable(void)
 		else
 			printf("OK.\n");
 	}
-	printf("This chipset supports the following protcols: %s.\n",
+	printf("This chipset supports the following protocols: %s.\n",
 	       flashbuses_to_text(buses_supported));
 
 	return ret;