Summary:
Pull Request resolved: https://github.com/facebook/rocksdb/pull/14296
This could is triggering `-Wstring-conversion`, which presents as:
```
warning: implicit conversion turns string literal into bool: A to B
```
This is often a bug and what was intended. The most frequent cause is the code was:
```
void foo(bool) { ... }
void foo(std::string) { ... }
foo("this gets interpreted as a bool");
```
It is also possible the issue is innocuous as part of an assert:
```
assert(!"this string is true, so the assertion is false");
EXPECT_FALSE("this string is true, so the expect fails");
```
in these cases the use is to "cute", so we modify the code to make it more obvious.
```
assert(false && "the compiler recognizes and doesn't complain about this pattern");
FAIL() << "much more obvious";
```
Reviewed By: anand1976
Differential Revision: D92013593
fbshipit-source-id: 0b4e00339bef3f76fc5b9ad35e2383c5e4f828f9
fa616f0e79