config: dpkg_deb should be dpkg-deb

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

archival/dpkg_deb.c

@@ -5,7 +5,7 @@
  * Licensed under GPLv2 or later, see file LICENSE in this source tree.
  */
 //config:config DPKG_DEB
-//config:	bool "dpkg_deb (30 kb)"
+//config:	bool "dpkg-deb (30 kb)"
 //config:	default y
 //config:	select FEATURE_SEAMLESS_GZ
 //config:	help