v2.31: Minor Bug Fixes and Improvements

Bug Fixes:

* Allow [, #, and space as the first character in database names. (Reviewed by Stefan Fercot, Cynthia Shang. Reported by Jefferson Alexandre.)
* Create standby.signal only on PostgreSQL 12 when restore type is standby. (Fixed by Stefan Fercot. Reviewed by David Steele. Reported by Keith Fiske.)

Features:

* Expire history files. (Contributed by Stefan Fercot. Reviewed by David Steele.)
* Report page checksum errors in info command text output. (Contributed by Stefan Fercot. Reviewed by Cynthia Shang.)
* Add repo-azure-endpoint option. (Reviewed by Cynthia Shang, Brian Peterson. Suggested by Brian Peterson.)
* Add pg-database option. (Reviewed by Cynthia Shang.)

Improvements:

* Improve info command output when a stanza is specified but missing. (Contributed by Stefan Fercot. Reviewed by Cynthia Shang, David Steele. Suggested by uspen.)
* Improve performance of large file lists in backup/restore commands. (Reviewed by Cynthia Shang, Oscar.)
* Add retries to PostgreSQL sleep when starting a backup. (Reviewed by Cynthia Shang. Suggested by Vitaliy Kukharik.)

Documentation Improvements:

* Replace RHEL/CentOS 6 documentation with RHEL/CentOS 8.

test/code-count/file-type.yaml

@@ -195,26 +195,6 @@ src/build/aclocal.m4:
   class: build
   type: make
 
-src/build/autom4te.cache/output.0:
-  class: build
-  type: make
-
-src/build/autom4te.cache/output.1:
-  class: build
-  type: make
-
-src/build/autom4te.cache/requests:
-  class: build
-  type: make
-
-src/build/autom4te.cache/traces.0:
-  class: build
-  type: make
-
-src/build/autom4te.cache/traces.1:
-  class: build
-  type: make
-
 src/build/config.guess:
   class: build
   type: make
@@ -1179,6 +1159,10 @@ src/config/config.h:
   class: core
   type: c/h
 
+src/config/config.intern.h:
+  class: core
+  type: c/h
+
 src/config/define.auto.c:
   class: core/auto
   type: c
@@ -2099,10 +2083,6 @@ test/src/module/common/waitTest.c:
   class: test/module
   type: c
 
-test/src/module/config/configTest.c:
-  class: test/module
-  type: c
-
 test/src/module/config/defineTest.c:
   class: test/module
   type: c