fix: ensure variables are initialized before dereferencing

src/closure.c

@@ -466,7 +466,7 @@ GlobalClosure *Closure;
 int exitCode = EXIT_SUCCESS;
 
 void InitClosure()
-{  int v1,v2,v3,dots=0;
+{  int v1=0,v2=0,v3=0,dots=0;
    char *v,version[strlen(VERSION)+1];
 
    Closure = g_malloc0(sizeof(GlobalClosure));

src/read-adaptive.c

@@ -1837,7 +1837,7 @@ reread:
 
 	       err = CheckForMissingSector(rc->buf+i*2048, b, NULL, 0);
 	       if(err != SECTOR_PRESENT)
-	       {  int fixme;
+	       {  int fixme=0;
 		  ExplainMissingSector(rc->buf+i*2048, b, err, SOURCE_MEDIUM, &fixme);
 
 		  if(rc->map)  /* Avoids confusion in the ecc stage */