bug fixes per Luis Sandoval

mikeblome · mikeblome · commit e99deab2fa05 · 2019-11-21T12:12:30.000-08:00
diff --git a/docs/assembler/masm/catstr.md b/docs/assembler/masm/catstr.md
@@ -15,7 +15,7 @@ Concatenates text items.
 
 ## Remarks
 
-Each text item can be a literal string, a constant preceded by a **%**, or the string returned by a macro function.
+Each text item can be a literal string, a constant preceded by a **%**, or the string returned by a macro function. **CATSTR** is a synonym for [TEXTEQU](textequ.md).
 
 ## See also
 
diff --git a/docs/assembler/masm/comm.md b/docs/assembler/masm/comm.md
@@ -11,7 +11,7 @@ Creates a communal variable with the attributes specified in *definition*.
 
 ## Syntax
 
-> **COMM** *definition* [, *definition*] ...
+> **COMM** *definition* [[, *definition*]] ...
 
 ## Remarks
 
diff --git a/docs/assembler/masm/dot-err2.md b/docs/assembler/masm/dot-err2.md
@@ -13,6 +13,10 @@ ms.assetid: ea8e0f14-cbdd-4576-9268-846527c27870
 
 > **.ERR2** [[*message*]]
 
+## Remarks
+
+For more information about 2-pass behavior in MASM 5.1 vs MASM 6.1, see [IF1 and IF2](if2.md).
+
 ## See also
 
 [Directives Reference](../../assembler/masm/directives-reference.md)<br/>
diff --git a/docs/assembler/masm/dot-errdif.md b/docs/assembler/masm/dot-errdif.md
@@ -11,7 +11,7 @@ Generates an error if the text items are different.
 
 ## Syntax
 
-> **.ERRDIF**\[**I**] *textitem1*__,__ *textitem2* \[__,__ *message*]
+> **.ERRDIF**[[**I**]] *textitem1*__,__ *textitem2* [[__,__ *message*]]
 
 ## Remarks
 
diff --git a/docs/assembler/masm/dot-erridn.md b/docs/assembler/masm/dot-erridn.md
@@ -11,7 +11,7 @@ Generates an error if the text items are identical.
 
 ## Syntax
 
-> **.ERRIDN**[[**I**]] *textitem1*__,__ *textitem2* \[__,__ *message*]
+> **.ERRIDN**[[**I**]] *textitem1*__,__ *textitem2* [[__,__ *message*]]
 
 ## Remarks
 
diff --git a/docs/assembler/masm/elseif2.md b/docs/assembler/masm/elseif2.md
@@ -13,6 +13,10 @@ ms.assetid: 6e6a1020-1dc2-45a9-a42c-e08442fb4071
 
 > **ELSEIF2**
 
+## Remarks
+
+For more information about 2-pass behavior in MASM 5.1 vs MASM 6.1, see [IF1 and IF2](if2.md).
+
 ## See also
 
 [Directives Reference](../../assembler/masm/directives-reference.md)<br/>
