Update exchange-cmdlet-syntax.md

Typo fix

Author: chrisda

exchange/docs-conceptual/exchange-server/exchange-cmdlet-syntax.md

@@ -127,7 +127,7 @@ The following table shows the valid operators that you can use in an Exchange co
 |**:**|A colon can be used to separate a parameter's name from the parameter's value. For example, `-Enabled:$True`. Using a colon is optional with all parameter types except switch parameters. For more information about switch parameters, see [Parameters](https://technet.microsoft.com/library/bc81f639-c822-4b2b-a692-694c43f5f57e.aspx).|
 |**!**|The exclamation point is a logical **NOT** operator. When it is used with the equal ( **=** ) sign, the combined pair means "not equal to."|
 |**[ ]**|Brackets are used to specify the index value of an array position. Index values are offsets that start at zero. For example, `$Red[9]` refers to the tenth index position in the array, `$Red`. <br/> Brackets can also be used to assign a type to a variable (for example, `$A=[XML] "<Test><A>value</A></Test>"`). The following variable types are available: `Array`, `Bool`, `Byte`, `Char`, `Char[]`, `Decimal`, `Double`, `Float`, `Int`, `Int[]`, `Long`, `Long[]`, `RegEx`, `Single`, `ScriptBlock`, `String`, `Type`, and `XML.`|
-|**Enclose the whole OPath filter in double quotation marks " ". If the filter contains system values (for example, `$true`, `$false`, or `$null`), use single quotation marks ' ' instead. Although this parameter is a string (not a system block), you can also use braces { }, but only if the filter doesn't contain variables.**|Braces are used to include an expression in a command. For example, Get-Process \| Where {$\_.HandleCount -gt 400}|
+|**{ }**|Braces are used to include an expression in a command. For example, Get-Process \| Where {$\_.HandleCount -gt 400}|
 |**\|**|The pipe symbol is used when one cmdlet pipes a result to another cmdlet. For example, Get-Mailbox -Server SRV1 \| Set-Mailbox -ProhibitSendQuota 2GB.|
 |**\>**|The right-angle bracket is used to send the output of a command to a file, and the contents of the file are overwritten. For example, `Get-TransportRulePredicate > "C:\My Documents\Output.txt"`.|
 |**\>\>**|Double right-angle brackets are used to append the output of a command to an existing file. If the file doesn't exist, a new file is created. For example, `Get-TransportRulePredicate >> "C:\My Documents\Output.txt"`.|