[clang] [clang][analyzer] Support `fputs` in the StreamChecker (PR #73335)

[Balázs Kéri via cfe-commits]

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@@ -50,6 +50,7 @@ size_t fread(void *restrict, size_t, size_t, FILE *restrict);
 size_t fwrite(const void *restrict, size_t, size_t, FILE *restrict);
 int fgetc(FILE *stream);
 int fputc(int ch, FILE *stream);
+int fputs(const char *str, FILE *stream);
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balazske wrote:

The exact POSIX declaration is `int fputs(const char *restrict s, FILE *restrict stream)`.

https://github.com/llvm/llvm-project/pull/73335