Reduce warning level for strict overflows

No plans to refactor pev atm., so just reduce the warning level for this,
highly unlikely to trigger, issue.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

Author: troglobit

src/Makefile.am

@@ -8,7 +8,7 @@ AUTOMAKE_OPTIONS = subdir-objects
 AM_CPPFLAGS      = -D_BSD_SOURCE -D_DEFAULT_SOURCE -D_GNU_SOURCE -I$(top_srcdir)/include
 AM_CPPFLAGS     += -DSYSCONFDIR=\"@sysconfdir@\" -DRUNSTATEDIR=\"@runstatedir@\" -DPRESERVEDIR=\"@localstatedir@/lib\"
 AM_CFLAGS        = -W -Wall -Wextra -Wno-unused-parameter -Wformat=2 -Wformat-overflow=2 -Winit-self \
-		   -Wstrict-overflow=4 -Wno-format-truncation -Wno-format-nonliteral
+		   -Wstrict-overflow=2 -Wno-format-truncation -Wno-format-nonliteral
 sbin_PROGRAMS    = mcd mctl
 mcd_SOURCES      = main.c cfparse.y config.c defs.h	\
 		   iface.c iface.h netlink.c		\