Needs to be void if we're going to use it in atexit()

src/syncterm/st_crypt.c

@@ -117,9 +117,8 @@ int init_crypt(void)
 	return(-1);
 }
 
-int exit_crypt(void)
+void exit_crypt(void)
 {
 	if(crypt_loaded)
 		cl.End();
-	return(0);
 }

src/syncterm/st_crypt.h

@@ -29,6 +29,6 @@ extern struct crypt_funcs cl;
 extern int crypt_loaded;
 
 int init_crypt(void);
-int exit_crypt(void);
+void exit_crypt(void);
 
 #endif