Merge pull request #3473 from taosdata/hotfix/sangshuduo/fix-issue-getenv-return-unknown-size

[TD-1407] <fix> fix an issue coverity reports

src/kit/shell/src/shellEngine.c

@@ -786,7 +786,7 @@ void read_history() {
 }
 
 void write_history() {
-  char f_history[128];
+  char f_history[TSDB_FILENAME_LEN];
   get_history_path(f_history);
 
   FILE *f = fopen(f_history, "w");

src/kit/shell/src/shellLinux.c

@@ -409,7 +409,7 @@ void set_terminal_mode() {
   }
 }
 
-void get_history_path(char *history) { sprintf(history, "%s/%s", getenv("HOME"), HISTORY_FILE); }
+void get_history_path(char *history) { snprintf(history, TSDB_FILENAME_LEN, "%s/%s", getenv("HOME"), HISTORY_FILE); }
 
 void clearScreen(int ecmd_pos, int cursor_pos) {
   struct winsize w;