Updated C6308

Changed wording to be more concise and less hostile. Changed the format and wording to match my other PRs

Author: MugBergerFries

docs/code-quality/c6308.md

@@ -9,13 +9,17 @@ ms.assetid: 1162cd96-9037-4576-9858-0c8361a12559
 ---
 # C6308
 
-> warning C6308: 'realloc' may return null pointer: assigning a null pointer to \<variable>, which is passed as an argument to 'realloc', will cause the original memory block to be leaked
+**Warning C6308: Memory Reallocation Leak (REALLOCLEAK)**\
+Example output:
+> 'realloc' may return null pointer: assigning a null pointer to '\**parameter-name*', which is passed as an argument to 'realloc', will cause the original memory block to be leaked
 
-This warning indicates a memory leak that is the result of the incorrect use of a reallocation function. Heap reallocation functions do not free the passed buffer if reallocation is unsuccessful. To correct the defect, assign the result of the reallocation function to a temporary, and then replace the original pointer after successful reallocation.
+## Description
+
+This warning indicates a memory leak due to the unsafe use of a reallocation function. Heap reallocation functions do not free the passed buffer if reallocation is unsuccessful. To correct the issue, assign the result of the reallocation function to a temporary location, and then replace the original pointer after successful reallocation.
 
 ## Example
 
-The following sample code generates this warning:
+The following sample code generates this warning. This issue stems from the assignment of x to the return value from realloc. If realloc fails and returns a null pointer, then x will fail to be freed:
 
 ```cpp
 #include <malloc.h>
@@ -34,7 +38,7 @@ void f( )
 }
 ```
 
-To correct this warning, use the following code:
+To resolve the issue, you can create a temporary variable to store the return status of realloc. This allows you to free the previously allocated memory safely in the case of realloc failing:
 
 ```cpp
 #include <malloc.h>
@@ -43,9 +47,7 @@ To correct this warning, use the following code:
 void f()
 {
   char *x, *tmp;
-
   x = (char *) malloc(10);
-
   if (x != NULL)
   {
     tmp = (char *) realloc(x,512);
@@ -61,7 +63,7 @@ void f()
 
 This warning might generate noise if there is a live alias to the buffer-to-be-reallocated at the time of the assignment of the result of the reallocation function.
 
-To avoid these kinds of problems altogether, use the mechanisms that are provided by the C++ Standard Template Library (STL). These include [shared_ptr](../standard-library/shared-ptr-class.md), [unique_ptr](../standard-library/unique-ptr-class.md), and [vector](../standard-library/vector.md). For more information, see [Smart Pointers](../cpp/smart-pointers-modern-cpp.md) and [C++ Standard Library](../standard-library/cpp-standard-library-reference.md).
+To avoid these kinds of issues altogether, you can use the mechanisms that are provided by the C++ Standard Template Library (STL). These include [shared_ptr](../standard-library/shared-ptr-class.md), [unique_ptr](../standard-library/unique-ptr-class.md), and [vector](../standard-library/vector.md). For more information, see [Smart Pointers](../cpp/smart-pointers-modern-cpp.md) and [C++ Standard Library](../standard-library/cpp-standard-library-reference.md).
 
 ## See also