merge revision(s) c6706f15af123bdbb3b39a21903d85c78462d047: [Backport #18241]

	Fix documentation for String#{<<,concat,prepend}

	These methods mutate and return the receiver, they don't create
	and return a new string.

	Fixes [Bug #18241]
	---
	 string.c | 19 ++++++++++---------
	 1 file changed, 10 insertions(+), 9 deletions(-)

1 files changed, 1 insertions, 1 deletions

diff --git a/version.h b/version.h
index 6903a7c682..e3c26230f6 100644
--- a/version.h
+++ b/version.h
@@ -12,7 +12,7 @@
 # define RUBY_VERSION_MINOR RUBY_API_VERSION_MINOR
 #define RUBY_VERSION_TEENY 4
 #define RUBY_RELEASE_DATE RUBY_RELEASE_YEAR_STR"-"RUBY_RELEASE_MONTH_STR"-"RUBY_RELEASE_DAY_STR
-#define RUBY_PATCHLEVEL 161
+#define RUBY_PATCHLEVEL 162
 
 #define RUBY_RELEASE_YEAR 2021
 #define RUBY_RELEASE_MONTH 12