diff for duplicates of <20180430110231.GF2476@ulmo>

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diff --git a/a/1.2.hdr b/a/1.2.hdr
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diff --git a/a/1.1.txt b/N1/1.txt
similarity index 82%
rename from a/1.1.txt
rename to N1/1.txt
index 9bde43c..39527e3 100644
--- a/a/1.1.txt
+++ b/N1/1.txt
@@ -24,3 +24,10 @@ implementing the equivalent there (which means essentially implementing
 it for drivers/iommu/dma-iommu.c and calling that from 64-bit ARM code).
 
 Thierry
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diff --git a/a/2.hdr b/a/2.hdr
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diff --git a/a/2.txt b/a/2.txt
deleted file mode 100644
index 3b3a377..0000000
--- a/a/2.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-_______________________________________________
-dri-devel mailing list
-dri-devel@lists.freedesktop.org
-https://lists.freedesktop.org/mailman/listinfo/dri-devel
diff --git a/a/content_digest b/N1/content_digest
index 3538f7b..55ab0c1 100644
--- a/a/content_digest
+++ b/N1/content_digest
@@ -2,17 +2,11 @@
  "ref\020180425101051.15349-2-thierry.reding@gmail.com\0"
  "ref\020180425151934.GC16075@infradead.org\0"
  "ref\020180426121136.GD11985@ulmo\0"
- "From\0Thierry Reding <thierry.reding@gmail.com>\0"
- "Subject\0Re: [PATCH v2 2/5] dma-mapping: Introduce dma_iommu_detach_device() API\0"
+ "From\0thierry.reding@gmail.com (Thierry Reding)\0"
+ "Subject\0[PATCH v2 2/5] dma-mapping: Introduce dma_iommu_detach_device() API\0"
  "Date\0Mon, 30 Apr 2018 13:02:31 +0200\0"
- "To\0Christoph Hellwig <hch@infradead.org>\0"
- "Cc\0nouveau@lists.freedesktop.org"
-  Russell King <linux@armlinux.org.uk>
-  dri-devel@lists.freedesktop.org
-  iommu@lists.linux-foundation.org
-  linux-tegra@vger.kernel.org
- " linux-arm-kernel@lists.infradead.org\0"
- "\02:1.1\0"
+ "To\0linux-arm-kernel@lists.infradead.org\0"
+ "\00:1\0"
  "b\0"
  "On Thu, Apr 26, 2018 at 02:11:36PM +0200, Thierry Reding wrote:\n"
  "> On Wed, Apr 25, 2018 at 08:19:34AM -0700, Christoph Hellwig wrote:\n"
@@ -39,31 +33,13 @@
  "implementing the equivalent there (which means essentially implementing\n"
  "it for drivers/iommu/dma-iommu.c and calling that from 64-bit ARM code).\n"
  "\n"
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- "_______________________________________________\n"
- "dri-devel mailing list\n"
- "dri-devel@lists.freedesktop.org\n"
- https://lists.freedesktop.org/mailman/listinfo/dri-devel
+ "Thierry\n"
+ "-------------- next part --------------\n"
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