pgindent run for 9.4

This includes removing tabs after periods in C comments, which was
applied to back branches, so this change should not effect backpatching.

src/include/parser/gramparse.h

@@ -29,7 +29,7 @@
 #include "parser/gram.h"
 
 /*
- * The YY_EXTRA data that a flex scanner allows us to pass around.	Private
+ * The YY_EXTRA data that a flex scanner allows us to pass around.  Private
  * state needed for raw parsing/lexing goes here.
  */
 typedef struct base_yy_extra_type

src/include/parser/parse_node.h

@@ -87,7 +87,7 @@ typedef Node *(*CoerceParamHook) (ParseState *pstate, Param *param,
  * links to current parse state of outer query.
  *
  * p_sourcetext: source string that generated the raw parsetree being
- * analyzed, or NULL if not available.	(The string is used only to
+ * analyzed, or NULL if not available.  (The string is used only to
  * generate cursor positions in error messages: we need it to convert
  * byte-wise locations in parse structures to character-wise cursor
  * positions.)
@@ -116,7 +116,7 @@ typedef Node *(*CoerceParamHook) (ParseState *pstate, Param *param,
  * is not an RTE, rather "visibility" means you could make an RTE from it.
  *
  * p_future_ctes: list of CommonTableExprs (WITH items) that are not yet
- * visible due to scope rules.	This is used to help improve error messages.
+ * visible due to scope rules.  This is used to help improve error messages.
  *
  * p_parent_cte: CommonTableExpr that immediately contains the current query,
  * if any.
@@ -182,7 +182,7 @@ struct ParseState
  *
  * While processing the FROM clause, namespace items may appear with
  * p_lateral_only set, meaning they are visible only to LATERAL
- * subexpressions.	(The pstate's p_lateral_active flag tells whether we are
+ * subexpressions.  (The pstate's p_lateral_active flag tells whether we are
  * inside such a subexpression at the moment.)	If p_lateral_ok is not set,
  * it's an error to actually use such a namespace item.  One might think it
  * would be better to just exclude such items from visibility, but the wording

src/include/parser/scanner.h

@@ -4,7 +4,7 @@
  *		API for the core scanner (flex machine)
  *
  * The core scanner is also used by PL/pgsql, so we provide a public API
- * for it.	However, the rest of the backend is only expected to use the
+ * for it.  However, the rest of the backend is only expected to use the
  * higher-level API provided by parser.h.
  *
  *
@@ -58,7 +58,7 @@ typedef union core_YYSTYPE
 
 /*
  * The YY_EXTRA data that a flex scanner allows us to pass around.
- * Private state needed by the core scanner goes here.	Note that the actual
+ * Private state needed by the core scanner goes here.  Note that the actual
  * yy_extra struct may be larger and have this as its first component, thus
  * allowing the calling parser to keep some fields of its own in YY_EXTRA.
  */