Commits on Oct 30, 2024

1. libc: strlcpy/strlcat shouldn't bzero the rest of buf …

   When running Bionic's testsuite over llvm-libc, tests broke because
   e.g.,
   
   ```
   const char *str = "abc";
   char buf[7]{"111111"};
   strlcpy(buf, str, 7);
   ASSERT_EQ(buf, {'1', '1', '1', '\0', '\0', '\0', '\0'});
   ```
   
   On my machine (Debian w/ glibc and clang-16), a `printf` loop over `buf`
   gets unrolled into a series of const `printf`` at compile-time:
   ```
   printf("%d\n", '1');
   printf("%d\n", '1');
   printf("%d\n", '1');
   printf("%d\n", 0);
   printf("%d\n", '1');
   printf("%d\n", '1');
   printf("%d\n", 0);
   ```
   
   Seems best to match existing precedent here.

   

   gburgessiv committed Oct 30, 2024
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