BUG #7799: Several configuration options in guc.c miss descriptions

The following bug has been logged on the website:

Bug reference:      7799
Logged by:          Tianyin Xu
Email address:      tixu@cs.ucsd.edu
PostgreSQL version: 9.2.2
Operating system:   any
Description:        =


Hi, I just noticed that several developer options do not have descriptions
(in src/backend/utils/misc/guc.c) with the text "No description available."

I wrote the desc. according to the online doc, see below.

HTH


--- src/backend/utils/misc/guc.c
+++ src/backend/utils/misc/guc.c.
@@ -988,7 +988,7 @@ static struct config_bool ConfigureNamesBool[] =3D
 #ifdef BTREE_BUILD_STATS
     {
         {"log_btree_build_stats", PGC_SUSET, DEVELOPER_OPTIONS,
-            gettext_noop("No description available."),
+            gettext_noop("Logs system resource usage statistics (memory and CPU) on
various B-tree operations."),
             NULL,
             GUC_NOT_IN_SAMPLE
         },
@@ -1062,7 +1062,7 @@ static struct config_bool ConfigureNamesBool[] =3D
 #ifdef LOCK_DEBUG
     {
         {"trace_locks", PGC_SUSET, DEVELOPER_OPTIONS,
-            gettext_noop("No description available."),
+            gettext_noop("Emits information about lock usage."),
             NULL,
             GUC_NOT_IN_SAMPLE
         },
@@ -1072,7 +1072,7 @@ static struct config_bool ConfigureNamesBool[] =3D
     },
     {
         {"trace_userlocks", PGC_SUSET, DEVELOPER_OPTIONS,
-            gettext_noop("No description available."),
+            gettext_noop("Emits information about user lock usage."),
             NULL,
             GUC_NOT_IN_SAMPLE
         },
@@ -1082,7 +1082,7 @@ static struct config_bool ConfigureNamesBool[] =3D
     },
     {
         {"trace_lwlocks", PGC_SUSET, DEVELOPER_OPTIONS,
-            gettext_noop("No description available."),
+            gettext_noop("Emits information about lightweight lock usage."),
             NULL,
             GUC_NOT_IN_SAMPLE
         },
@@ -1092,7 +1092,7 @@ static struct config_bool ConfigureNamesBool[] =3D
     },
     {
         {"debug_deadlocks", PGC_SUSET, DEVELOPER_OPTIONS,
-            gettext_noop("No description available."),
+            gettext_noop("Dumps information about all current locks when a deadlock
timeout occurs."),
             NULL,
             GUC_NOT_IN_SAMPLE
         },
@@ -1828,8 +1828,8 @@ static struct config_int ConfigureNamesInt[] =3D
 #ifdef LOCK_DEBUG
     {
         {"trace_lock_oidmin", PGC_SUSET, DEVELOPER_OPTIONS,
-            gettext_noop("No description available."),
-            NULL,
+            gettext_noop("Sets the minimum OID of tables for tracking locks."),
+            gettext_noop("Is used to avoid output on system tables."),
             GUC_NOT_IN_SAMPLE
         },
         &Trace_lock_oidmin,
@@ -1838,7 +1838,7 @@ static struct config_int ConfigureNamesInt[] =3D
     },
     {
         {"trace_lock_table", PGC_SUSET, DEVELOPER_OPTIONS,
-            gettext_noop("No description available."),
+            gettext_noop("Sets the OID of the table with unconditionally lock
tracing."),
             NULL,
             GUC_NOT_IN_SAMPLE
         },