Fix pipe timing for copy test

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Hash: SHA1

Fix pipe timing for copy test

manifest hash: 75c389c84f4edacdd9163b6e5234f3ea334ca4b3
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Version: GnuPG v1.4.0 (GNU/Linux)

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tests/test-copy

@@ -1,18 +1,20 b''
 #!/bin/bash
 
 set -x
 hg init
 echo a > a
 hg add a
 hg commit -t "1" -u test -d "0 0"
 hg status
 cp a b
 hg copy a b
 hg status
 hg -d commit -t "2" -u test -d "0 0"
 hg history
 hg log a
 hexdump -C .hg/data/b.d
-hg cat b | md5sum
-hg cat a | md5sum
+hg cat b > bsum
+md5sum bsum
+hg cat a > asum
+md5sum asum
 hg verify

tests/test-copy.out

@@ -1,52 +1,52 b''
 + hg init
 + echo a
 + hg add a
 + hg commit -t 1 -u test -d '0 0'
 + hg status
 ? .out
 + cp a b
 + hg copy a b
 + hg status
 A b
 ? .out
 + hg -d commit -t 2 -u test -d '0 0'
 b
  b: copy a:b789fdd96dc2f3bd229c1dd8eedf0fc60e2b68e3
 + hg history
 changeset:   1:3b5b84850bbed12e8ff8c1b87b32dc93c59ae6d8
 tag:         tip
 user:        test
 date:        Thu Jan  1 00:00:00 1970
 summary:     2
 
 changeset:   0:c19d34741b0a4ced8e4ba74bb834597d5193851e
 user:        test
 date:        Thu Jan  1 00:00:00 1970
 summary:     1
 
 + hg log a
 revision:    0:b789fdd96dc2f3bd229c1dd8eedf0fc60e2b68e3
 changeset:   0:c19d34741b0a4ced8e4ba74bb834597d5193851e
 user:        test
 date:        Thu Jan  1 00:00:00 1970
 summary:     1
 
 + hexdump -C .hg/data/b.d
 00000000  75 01 0a 63 6f 70 79 72  65 76 3a 20 62 37 38 39  |u..copyrev: b789|
 00000010  66 64 64 39 36 64 63 32  66 33 62 64 32 32 39 63  |fdd96dc2f3bd229c|
 00000020  31 64 64 38 65 65 64 66  30 66 63 36 30 65 32 62  |1dd8eedf0fc60e2b|
 00000030  36 38 65 33 0a 63 6f 70  79 3a 20 61 0a 01 0a 61  |68e3.copy: a...a|
 00000040  0a                                                |.|
 00000041
 + hg cat b
-+ md5sum
-60b725f10c9c85c70d97880dfe8191b3  -
++ md5sum bsum
+60b725f10c9c85c70d97880dfe8191b3  bsum
 + hg cat a
-+ md5sum
-60b725f10c9c85c70d97880dfe8191b3  -
++ md5sum asum
+60b725f10c9c85c70d97880dfe8191b3  asum
 + hg verify
 checking changesets
 checking manifests
 crosschecking files in changesets and manifests
 checking files
 2 files, 2 changesets, 2 total revisions