Cross Reference: /external/libcxx/test/std/strings/basic.string/string.modifiers

`Name`	`Date`	`Size`
Up to higher level directory
`nothing_to_do.pass.cpp`	22-Oct-2020	`372`
`string_append/`	22-Oct-2020
`string_assign/`	22-Oct-2020
`string_copy/`	22-Oct-2020
`string_erase/`	22-Oct-2020
`string_insert/`	22-Oct-2020
`string_op_plus_equal/`	22-Oct-2020
`string_replace/`	22-Oct-2020
`string_swap/`	22-Oct-2020