Update language to comply with Android's inclusive language guidance

See https://source.android.com/setup/contribute/respectful-code for
reference

Bug: 161896447
Test: TH
Change-Id: I2a93e520120fa52a190a445b4d4c417c299b9727

tools/check_elf_file.py

@@ -174,7 +174,7 @@ class ELFParser(object):
   @classmethod
   def open(cls, elf_file_path, llvm_readobj):
     """Open and parse the ELF file."""
-    # Parse the ELF header for simple sanity checks.
+    # Parse the ELF header to check the magic word.
     header = cls._read_elf_header(elf_file_path)
     if not header or header.ei_magic != _ELF_MAGIC:
       raise ELFInvalidMagicError()