https://git.ruby-lang.org/ruby.git/commit/?id=ae3a986204

From ae3a9862048135f846f694b98031cf264889580f Mon Sep 17 00:00:00 2001
From: git <svn@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Tue, 30 Apr 2019 03:33:51 +0900
Subject: * expand tabs.


diff --git a/win32/win32.c b/win32/win32.c
index 2e3f6c4..d14b903 100644
--- a/win32/win32.c
+++ b/win32/win32.c
@@ -6142,22 +6142,22 @@ rb_w32_getppid(void) https://github.com/ruby/ruby/blob/trunk/win32/win32.c#L6142
 
     HANDLE hSnap = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
     if (hSnap != INVALID_HANDLE_VALUE) {
-	BOOL ok;
-	PROCESSENTRY32 pe;
-	DWORD pid = GetCurrentProcessId();
-	pe.dwSize = sizeof(pe);
-	ok = Process32First(hSnap, &pe);
-	while (ok) {
-	    if (pe.th32ProcessID == pid) {
-		ppid = (rb_pid_t)pe.th32ParentProcessID;
-		break;
-	    }
-	    ok = Process32Next(hSnap, &pe);
-	}
-	CloseHandle(hSnap);
-	if (ppid != 0) {
-	    return ppid;
-	}
+        BOOL ok;
+        PROCESSENTRY32 pe;
+        DWORD pid = GetCurrentProcessId();
+        pe.dwSize = sizeof(pe);
+        ok = Process32First(hSnap, &pe);
+        while (ok) {
+            if (pe.th32ProcessID == pid) {
+                ppid = (rb_pid_t)pe.th32ParentProcessID;
+                break;
+            }
+            ok = Process32Next(hSnap, &pe);
+        }
+        CloseHandle(hSnap);
+        if (ppid != 0) {
+            return ppid;
+        }
     }
 
     if (pNtQueryInformationProcess == (query_func *)-1)
-- 
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