pgsql: Fix variable shadowing in procarray.c.

Fix variable shadowing in procarray.c. ProcArrayGroupClearXid function has a parameter named "proc", but the same name was used for its local variables. This commit fixes this variable shadowing, to improve code readability. Back-patch to all supported versions, to make future back-patching easy

pgsql: Fix variable shadowing in procarray.c.

Fix variable shadowing in procarray.c. ProcArrayGroupClearXid function has a parameter named "proc", but the same name was used for its local variables. This commit fixes this variable shadowing, to improve code readability. Back-patch to all supported versions, to make future back-patching easy

pgsql: Fix variable shadowing in procarray.c.

Fix variable shadowing in procarray.c. ProcArrayGroupClearXid function has a parameter named "proc", but the same name was used for its local variables. This commit fixes this variable shadowing, to improve code readability. Back-patch to all supported versions, to make future back-patching easy

pgsql: Fix variable shadowing in procarray.c.

Fix variable shadowing in procarray.c. ProcArrayGroupClearXid function has a parameter named "proc", but the same name was used for its local variables. This commit fixes this variable shadowing, to improve code readability. Back-patch to all supported versions, to make future back-patching easy

pgsql: Fix variable shadowing in procarray.c.

Fix variable shadowing in procarray.c. ProcArrayGroupClearXid function has a parameter named "proc", but the same name was used for its local variables. This commit fixes this variable shadowing, to improve code readability. Back-patch to all supported versions, to make future back-patching easy

pgsql: Fix variable shadowing in procarray.c.

Fix variable shadowing in procarray.c. ProcArrayGroupClearXid function has a parameter named "proc", but the same name was used for its local variables. This commit fixes this variable shadowing, to improve code readability. Back-patch to all supported versions, to make future back-patching easy

pgsql: Fix variable shadowing in procarray.c.

Fix variable shadowing in procarray.c. ProcArrayGroupClearXid function has a parameter named "proc", but the same name was used for its local variables. This commit fixes this variable shadowing, to improve code readability. Back-patch to all supported versions, to make future back-patching easy