Remove unneeded exec bits from some files

I noticed that some files in rubygems were executable, and I could think of no reason why they should be. In general, I think ruby files should never have the executable bit set unless they include a shebang, so I run the following command over the whole repo: ```bash find . -name '*.rb' -type f -executable -exec bash -c 'grep -L "^#!" $1 || chmod -x $1' _ {} \; ```
2019-11-08 15:03:02 +01:00 · 2019-11-08 15:03:02 +01:00 · f48655d04d
--- a/benchmark/lib/load.rb
+++ b/benchmark/lib/load.rb
--- a/ext/-test-/enumerator_kw/extconf.rb
+++ b/ext/-test-/enumerator_kw/extconf.rb
--- a/ext/-test-/rb_call_super_kw/extconf.rb
+++ b/ext/-test-/rb_call_super_kw/extconf.rb
--- a/ext/-test-/scan_args/extconf.rb
+++ b/ext/-test-/scan_args/extconf.rb
--- a/ext/ripper/tools/generate-param-macros.rb
+++ b/ext/ripper/tools/generate-param-macros.rb
--- a/ext/ripper/tools/generate.rb
+++ b/ext/ripper/tools/generate.rb
--- a/ext/ripper/tools/preproc.rb
+++ b/ext/ripper/tools/preproc.rb
--- a/ext/ripper/tools/strip.rb
+++ b/ext/ripper/tools/strip.rb
--- a/lib/rubygems/core_ext/kernel_require.rb
+++ b/lib/rubygems/core_ext/kernel_require.rb
--- a/lib/rubygems/core_ext/kernel_warn.rb
+++ b/lib/rubygems/core_ext/kernel_warn.rb
--- a/sample/test.rb
+++ b/sample/test.rb
--- a/test/csv/test_data_converters.rb
+++ b/test/csv/test_data_converters.rb
--- a/test/csv/test_encodings.rb
+++ b/test/csv/test_encodings.rb
--- a/test/csv/test_features.rb
+++ b/test/csv/test_features.rb
--- a/test/csv/test_row.rb
+++ b/test/csv/test_row.rb
--- a/test/csv/test_table.rb
+++ b/test/csv/test_table.rb
--- a/tool/gem-unpack.rb
+++ b/tool/gem-unpack.rb