Description:
------------
The "add-a-patch" system in the php.net bug tracker will check for mime-types after uploading a patch. When a file has some low ascii-characters, it will not be detected correctly as a plain text file. The upload will not success in that case.

There are some files in the php sources that have these low ascii characters present so patches on those files cannot be uploaded correctly.

Test script:
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The files:
  ext/standard/tests/strings/strip_tags_variation5.phpt 
  ext/standard/tests/strings/strip_tags_variation8.phpt 
  ext/standard/tests/strings/strip_tags_variation9.phpt 
have some low ascii characters: ^K and ^L. Because of this, linux' "file" command detect those files "incorrectly":

jthijssen@debian-jth:~/php-src-5.3$ file ext/standard/tests/strings/strip_tags_variation5.phpt 
ext/standard/tests/strings/strip_tags_variation5.phpt: data
jthijssen@debian-jth:~/php-src-5.3$ file ext/standard/tests/strings/strip_tags_variation4.phpt 
ext/standard/tests/strings/strip_tags_variation4.phpt: ASCII C program text

Expected result:
----------------
The patch should be added to the bug

Actual result:
--------------
The bug database reports an incorrect filetype (detected: application/octet-stream)