Fix PoliCheck hit: Western countries

User Story https://dev.azure.com/mseng/TechnicalContent/_workitems/edit/2001296.

Author: v-thepet

docs/atl-mfc-shared/codesnippet/CPP/cstringt-class_2.cpp

@@ -1,5 +1,5 @@
    // OEM character 252 on most IBM-compatible computers in
-   // Western countries/regions is superscript n, as in 2^n.
+   // many countries/regions is superscript n, as in 2^n.
    // Converting it to the ANSI English charset results in a
    // normal character 'n', which is the closest possible
    // representation.
@@ -14,4 +14,4 @@
    // the character's value truly was.
    str.AnsiToOem();
    ASSERT(str[0] != 252);
-   ASSERT(str[0] == 'n');   
+   ASSERT(str[0] == 'n');