Issue #19936: Remove executable bits from C source files and several forgotten
test files.
diff --git a/Lib/test/test_gzip.py b/Lib/test/test_gzip.py
old mode 100755
new mode 100644
diff --git a/Mac/PythonLauncher/FileSettings.h b/Mac/PythonLauncher/FileSettings.h
old mode 100755
new mode 100644
diff --git a/Mac/PythonLauncher/FileSettings.m b/Mac/PythonLauncher/FileSettings.m
old mode 100755
new mode 100644
diff --git a/Mac/PythonLauncher/MyDocument.h b/Mac/PythonLauncher/MyDocument.h
old mode 100755
new mode 100644
diff --git a/Mac/PythonLauncher/MyDocument.m b/Mac/PythonLauncher/MyDocument.m
old mode 100755
new mode 100644
diff --git a/Mac/PythonLauncher/main.m b/Mac/PythonLauncher/main.m
old mode 100755
new mode 100644
diff --git a/Modules/_decimal/tests/bench.py b/Modules/_decimal/tests/bench.py
old mode 100755
new mode 100644
diff --git a/Modules/_decimal/tests/deccheck.py b/Modules/_decimal/tests/deccheck.py
old mode 100755
new mode 100644
diff --git a/PC/msvcrtmodule.c b/PC/msvcrtmodule.c
old mode 100755
new mode 100644
diff --git a/Tools/test2to3/maintest.py b/Tools/test2to3/maintest.py
old mode 100644
new mode 100755