bpo-32150: Expand tabs to spaces in C files. (#4583)

diff --git a/Python/getplatform.c b/Python/getplatform.c
index 6899140..81a0f7a 100644
--- a/Python/getplatform.c
+++ b/Python/getplatform.c
@@ -8,5 +8,5 @@
 const char *
 Py_GetPlatform(void)
 {
-	return PLATFORM;
+    return PLATFORM;
 }