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--- ceph-16.2.4/src/common/Formatter.cc.orig	2021-07-07 09:32:25.513818420 -0400
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+++ ceph-16.2.4/src/common/Formatter.cc	2021-07-07 09:44:42.007373294 -0400
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@@ -21,6 +21,7 @@
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 #include <fmt/format.h>
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 #include <set>
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 #include <limits>
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+#include <algorithm>
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 // -----------------------
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 namespace ceph {