ICU-20964 Fix small typo mistake

See #974

diff --git a/icu4c/source/common/unicode/platform.h b/icu4c/source/common/unicode/platform.h
index ad75b298a42c52f66e7d6d6b856506f2130930e3..2bb2f8b318d1133de3c4a9ebf13bdce642482726 100644 (file)
--- a/icu4c/source/common/unicode/platform.h
+++ b/icu4c/source/common/unicode/platform.h
@@ -828,7 +828,7 @@ namespace std {
 #   define U_EXPORT
 #endif
 
-/* U_CALLCONV is releated to U_EXPORT2 */
+/* U_CALLCONV is related to U_EXPORT2 */
 #ifdef U_EXPORT2
     /* Use the predefined value. */
 #elif defined(_MSC_VER)