MDEV-11945: Fix description for "max_statement_time" in --help

max_statement_time also applies to non-SELECT queries.

mysql-test/r/mysqld--help.result

@@ -467,10 +467,10 @@ The following options may be given as the first argument:
  --max-sp-recursion-depth[=#] 
  Maximum stored procedure recursion depth
  --max-statement-time=# 
- A SELECT query that have taken more than
- max_statement_time seconds will be aborted. The argument
- will be treated as a decimal value with microsecond
- precision.  A value of 0 (default) means no timeout
+ A query that has taken more than max_statement_time
+ seconds will be aborted. The argument will be treated as
+ a decimal value with microsecond precision. A value of 0
+ (default) means no timeout
  --max-tmp-tables=#  Unused, will be removed.
  --max-user-connections=# 
  The maximum number of active connections for a single

mysql-test/suite/sys_vars/r/sysvars_server_embedded.result

@@ -2046,7 +2046,7 @@ GLOBAL_VALUE_ORIGIN	COMPILE-TIME
 DEFAULT_VALUE	0.000000
 VARIABLE_SCOPE	SESSION
 VARIABLE_TYPE	DOUBLE
-VARIABLE_COMMENT	A SELECT query that have taken more than max_statement_time seconds will be aborted. The argument will be treated as a decimal value with microsecond precision.  A value of 0 (default) means no timeout
+VARIABLE_COMMENT	A query that has taken more than max_statement_time seconds will be aborted. The argument will be treated as a decimal value with microsecond precision. A value of 0 (default) means no timeout
 NUMERIC_MIN_VALUE	0
 NUMERIC_MAX_VALUE	31536000
 NUMERIC_BLOCK_SIZE	NULL

mysql-test/suite/sys_vars/r/sysvars_server_notembedded.result

@@ -2242,7 +2242,7 @@ GLOBAL_VALUE_ORIGIN	COMPILE-TIME
 DEFAULT_VALUE	0.000000
 VARIABLE_SCOPE	SESSION
 VARIABLE_TYPE	DOUBLE
-VARIABLE_COMMENT	A SELECT query that have taken more than max_statement_time seconds will be aborted. The argument will be treated as a decimal value with microsecond precision.  A value of 0 (default) means no timeout
+VARIABLE_COMMENT	A query that has taken more than max_statement_time seconds will be aborted. The argument will be treated as a decimal value with microsecond precision. A value of 0 (default) means no timeout
 NUMERIC_MIN_VALUE	0
 NUMERIC_MAX_VALUE	31536000
 NUMERIC_BLOCK_SIZE	NULL

sql/sys_vars.cc

@@ -1242,7 +1242,7 @@ static bool update_cached_max_statement_time(sys_var *self, THD *thd,
 
 static Sys_var_double Sys_max_statement_time(
        "max_statement_time",
-       "A SELECT query that have taken more than max_statement_time seconds "
+       "A query that has taken more than max_statement_time seconds "
        "will be aborted. The argument will be treated as a decimal value "
        "with microsecond precision. A value of 0 (default) means no timeout",
        SESSION_VAR(max_statement_time_double),