gant: fix gcc warning

src/gant/gant.c: In function ‘chevent’:
src/gant/gant.c:912:5: warning: ‘phase’ may be used uninitialized in this function [-Wmaybe-uninitialized]
     switch (phase)
     ^
src/gant/gant.c:27:96: warning: ‘status’ may be used uninitialized in this function [-Wmaybe-uninitialized]
 #define DEBUG_OUT(level, ...) {if (dbg && level <= dbg){fprintf(stderr, "DEBUG(%d): ", level); fprintf(stderr, __VA_ARGS__); fprintf(stderr, " in line %d.\n", __LINE__);}}
                                                                                                ^
src/gant/gant.c:830:9: note: ‘status’ was declared here
   uchar status;
         ^

1 files changed, 2 insertions, 2 deletions

diff --git a/src/gant/gant.c b/src/gant/gant.c
index c4e1b7c..287ffe0 100644
--- a/src/gant/gant.c
+++ b/src/gant/gant.c
@@ -827,8 +827,8 @@ void usage(void)
 
 uchar chevent(uchar chan, uchar event)
 {
-  uchar status;
-  uchar phase;
+  uchar status = 0;
+  uchar phase = 0;
   /*uint newdata;*/
   struct ack_msg ack;
   struct auth_msg auth;