SrsContextId assignment can be improved without create a duplicated one. v5.0.175 v6.0.70 (#3503)

SrsContextId object creation can be improved on `srs_protocol_log.cpp`,
No need to create one, then assign it back. It seems a common mistake
for Cpp programmers.

---------

Co-authored-by: john <hondaxiao@tencent.com>

trunk/doc/CHANGELOG.md

@@ -7,6 +7,7 @@ The changelog for SRS.
 <a name="v6-changes"></a>
 
 ## SRS 6.0 Changelog
+* v6.0, 2023-08-28, Merge [#3503](https://github.com/ossrs/srs/pull/3503): SrsContextId assignment can be improved without create a duplicated one. v6.0.70 (#3503)
 * v6.0, 2023-08-28, Merge [#3781](https://github.com/ossrs/srs/pull/3781): HLS: Fix on_hls and hls_dispose critical zone issue. v6.0.69 (#3781)
 * v6.0, 2023-08-28, Merge [#3768](https://github.com/ossrs/srs/pull/3768): Support include empty config file. v6.0.68 (#3768)
 * v6.0, 2023-08-25, Merge [#3782](https://github.com/ossrs/srs/pull/3782): HLS: Support reload HLS asynchronously. v6.0.67 (#3782)
@@ -81,6 +82,7 @@ The changelog for SRS.
 <a name="v5-changes"></a>
 
 ## SRS 5.0 Changelog
+* v5.0, 2023-08-28, Merge [#3503](https://github.com/ossrs/srs/pull/3503): SrsContextId assignment can be improved without create a duplicated one. v5.0.175 (#3503)
 * v5.0, 2023-08-28, Merge [#3781](https://github.com/ossrs/srs/pull/3781): HLS: Fix on_hls and hls_dispose critical zone issue. v5.0.174 (#3781)
 * v5.0, 2023-08-28, Merge [#3768](https://github.com/ossrs/srs/pull/3768): Support include empty config file. v5.0.173 (#3768)
 * v5.0, 2023-08-25, Merge [#3782](https://github.com/ossrs/srs/pull/3782): HLS: Support reload HLS asynchronously. v5.0.172 (#3782)

trunk/src/core/srs_core_version5.hpp

@@ -9,6 +9,6 @@
 
 #define VERSION_MAJOR       5
 #define VERSION_MINOR       0
-#define VERSION_REVISION    174
+#define VERSION_REVISION    175
 
 #endif

trunk/src/core/srs_core_version6.hpp

@@ -9,6 +9,6 @@
 
 #define VERSION_MAJOR       6
 #define VERSION_MINOR       0
-#define VERSION_REVISION    69
+#define VERSION_REVISION    70
 
 #endif

trunk/src/protocol/srs_protocol_log.cpp

@@ -33,7 +33,7 @@ SrsThreadContext::~SrsThreadContext()
 
 SrsContextId SrsThreadContext::generate_id()
 {
-    SrsContextId cid = SrsContextId();
+    SrsContextId cid;
     return cid.set_value(srs_random_str(8));
 }