Merge pull request #136 from sureshsundriyal/wip

Minor changes.

src/environ_vtab.cc

@@ -212,7 +212,7 @@ static int vt_update(sqlite3_vtab *tab,
     const char *name = (
         argc > 2 ? (const char *)sqlite3_value_text(argv[2]) : NULL);
     vtab *p_vt = (vtab *)tab;
-    int retval;
+    int retval = SQLITE_ERROR;
 
     if (argc != 1 &&
         (argc < 3 ||

src/readline_curses.cc

@@ -589,7 +589,7 @@ void readline_curses::start(void)
 void readline_curses::line_ready(const char *line)
 {
     auto_mem<char> expanded;
-    char           msg[1024];
+    char           msg[1024] = {0};
     int            rc;
 
     if (rl_line_buffer[0] == '^') {