MAINT-6509 Viewer still allows you to create a group with leading spaces in the group name

indra/llui/lltextvalidate.cpp

@@ -328,6 +328,15 @@ namespace LLTextValidate
 		return rv;
 	}
 
+	bool validateASCIINoLeadingSpace(const LLWString &str)
+	{
+		if (LLStringOps::isSpace(str[0]))
+		{
+			return FALSE;
+		}
+		return validateASCII(str);
+	}
+
 	// Used for multiline text stored on the server.
 	// Example is landmark description in Places SP.
 	bool validateASCIIWithNewLine(const LLWString &str)

indra/llui/lltextvalidate.h

@@ -52,6 +52,7 @@ namespace LLTextValidate
 	bool	validateASCIIPrintableNoPipe(const LLWString &str); 
 	bool	validateASCIIPrintableNoSpace(const LLWString &str);
 	bool	validateASCII(const LLWString &str);
+	bool	validateASCIINoLeadingSpace(const LLWString &str);
 	bool	validateASCIIWithNewLine(const LLWString &str);
 }
 

indra/newview/llpanelgroupgeneral.cpp

@@ -199,7 +199,7 @@ void LLPanelGroupGeneral::setupCtrls(LLPanel* panel_group)
 
 
 	mGroupNameEditor = panel_group->getChild<LLLineEditor>("group_name_editor");
-	mGroupNameEditor->setPrevalidate( LLTextValidate::validateASCII );
+	mGroupNameEditor->setPrevalidate( LLTextValidate::validateASCIINoLeadingSpace );
 	
 
 }