ShellPkg/TftpDynamicCommand: Clarify the retry count option in command.
[-c <retry count>] is to define the number of times to transmit request packets and wait for a response. The default value is 6. But it doesn't specify the behavior of zero value. Here, The patch is to clear that: Set to zero also means to use the default value. Cc: Carsey Jaben <jaben.carsey@intel.com> Cc: Ye Ting <ting.ye@intel.com> Cc: Fu Siyuan <siyuan.fu@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Wu Jiaxin <jiaxin.wu@intel.com> Reviewed-by: Fu Siyuan <siyuan.fu@intel.com> Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>
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@@ -58,7 +58,8 @@
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" and the port number is automatically assigned.\r\n"
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" -r port - Specifies the remote port number. Default value is 69.\r\n"
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" -c <retry count> - The number of times to transmit request packets and\r\n"
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" wait for a response. The default value is 6.\r\n"
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" wait for a response. The default value is 6. Set to zero\r\n"
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" also means to use the default value.\r\n"
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" -t <timeout> - The number of seconds to wait for a response after\r\n"
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" sending a request packet. Default value is 4s.\r\n"
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" -s <block size> - Specifies the TFTP blksize option as defined in RFC 2348.\r\n"
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