patch 9.0.2003: xxd: compilation warning

Problem:  xxd: compilation warning
Solution: initialize variables

Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/xxd/xxd.c b/src/xxd/xxd.c
index 56fb321..544aa50 100644
--- a/src/xxd/xxd.c
+++ b/src/xxd/xxd.c
@@ -136,7 +136,7 @@
 # endif
 #endif
 
-char version[] = "xxd 2023-10-06 by Juergen Weigert et al.";
+char version[] = "xxd 2023-10-08 by Juergen Weigert et al.";
 #ifdef WIN32
 char osver[] = " (Win32)";
 #else
@@ -364,7 +364,7 @@
   int hextype,
   long base_off)
 {
-  int c, ign_garb = 1, n1 = -1, n2 = 0, n3, p = cols, bt, b = 0, bcnt = 0;
+  int c, ign_garb = 1, n1 = -1, n2 = 0, n3 = 0, p = cols, bt = 0, b = 0, bcnt = 0;
   long have_off = 0, want_off = 0;
 
   rewind(fpi);