fix comments in SqlRunner.java

Author: wangxu0

src/main/java/org/apache/ibatis/jdbc/SqlRunner.java

@@ -52,7 +52,7 @@ public void setUseGeneratedKeySupport(boolean useGeneratedKeySupport) {
     this.useGeneratedKeySupport = useGeneratedKeySupport;
   }
 
-  /*
+  /**
    * Executes a SELECT statement that returns one row.
    *
    * @param sql  The SQL
@@ -68,7 +68,7 @@ public Map<String, Object> selectOne(String sql, Object... args) throws SQLExcep
     return results.get(0);
   }
 
-  /*
+  /**
    * Executes a SELECT statement that returns multiple rows.
    *
    * @param sql  The SQL
@@ -91,7 +91,7 @@ public List<Map<String, Object>> selectAll(String sql, Object... args) throws SQ
     }
   }
 
-  /*
+  /**
    * Executes an INSERT statement.
    *
    * @param sql  The SQL
@@ -137,7 +137,7 @@ public int insert(String sql, Object... args) throws SQLException {
     }
   }
 
-  /*
+  /**
    * Executes an UPDATE statement.
    *
    * @param sql  The SQL
@@ -159,7 +159,7 @@ public int update(String sql, Object... args) throws SQLException {
     }
   }
 
-  /*
+  /**
    * Executes a DELETE statement.
    *
    * @param sql  The SQL
@@ -171,7 +171,7 @@ public int delete(String sql, Object... args) throws SQLException {
     return update(sql, args);
   }
 
-  /*
+  /**
    * Executes any string as a JDBC Statement.
    * Good for DDL
    *