Return a pointer from str_endswith as well

(cherry picked from commit 9fcf5480f8)

src/base/system.c

@@ -1964,15 +1964,24 @@ const char *str_startswith(const char *str, const char *prefix)
 	}
 }
 
-int str_endswith(const char *str, const char *suffix)
+const char *str_endswith(const char *str, const char *suffix)
 {
 	int strl = str_length(str);
 	int suffixl = str_length(suffix);
+	const char *strsuffix;
 	if(strl < suffixl)
 	{
 		return 0;
 	}
-	return str_comp(str + strl - suffixl, suffix) == 0;
+	strsuffix = str + strl - suffixl;
+	if(str_comp(strsuffix, suffix) == 0)
+	{
+		return strsuffix;
+	}
+	else
+	{
+		return 0;
+	}
 }
 
 const char *str_find_nocase(const char *haystack, const char *needle)

src/base/system.h

@@ -1039,13 +1039,13 @@ const char *str_startswith(const char *str, const char *prefix);
 		suffix - Suffix to look for.
 
 	Returns:
-		0 - String suffix is not a suffix of string str
+		A pointer to the beginning of the suffix in the string str, or
-		1 - String suffix is a suffix of string str
+		0 if the string suffix isn't a suffix of the string str.
 
 	Remarks:
 		- The strings are treated as zero-terminated strings.
 */
-int str_endswith(const char *str, const char *suffix);
+const char *str_endswith(const char *str, const char *suffix);
 
 /*
 	Function: str_find_nocase