Fix whitespace issues found by git diff --check, add gitattributes

Set per file type attributes in .gitattributes to fine-tune whitespace
checks.  With the associated cleanups, the tree is now clean for git

6 files changed, 7 insertions, 7 deletions

diff --git a/doc/src/sgml/event-trigger.sgml b/doc/src/sgml/event-trigger.sgml
index ac313321ff..e5b9e66185 100644
--- a/doc/src/sgml/event-trigger.sgml
+++ b/doc/src/sgml/event-trigger.sgml
@@ -793,9 +793,9 @@ CREATE EVENT TRIGGER noddl ON ddl_command_start
 <screen>
 =# \dy
                      List of event triggers
- Name  |       Event       | Owner | Enabled | Procedure | Tags 
+ Name  |       Event       | Owner | Enabled | Procedure | Tags
 -------+-------------------+-------+---------+-----------+------
- noddl | ddl_command_start | dim   | enabled | noddl     | 
+ noddl | ddl_command_start | dim   | enabled | noddl     |
 (1 row)
 
 =# CREATE TABLE foo(id serial);
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index a1d3aee8f5..89f08aff97 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -13469,7 +13469,7 @@ SELECT * FROM unnest2(ARRAY[[1,2],[3,4]]);
 <programlisting>
 -- set returning function WITH ORDINALITY
 SELECT * FROM pg_ls_dir('.') WITH ORDINALITY AS t(ls,n);
-       ls        | n  
+       ls        | n
 -----------------+----
  pg_serial       |  1
  pg_twophase     |  2
diff --git a/doc/src/sgml/pgbench.sgml b/doc/src/sgml/pgbench.sgml
index 8e1a05dde8..05ca9b76ab 100644
--- a/doc/src/sgml/pgbench.sgml
+++ b/doc/src/sgml/pgbench.sgml
@@ -439,7 +439,7 @@ pgbench <optional> <replaceable>options</> </optional> <replaceable>dbname</>
         transactions go past their original scheduled end time, it is
         possible for later ones to catch up again.
        </para>
-       <para>        
+       <para>
         When throttling is active, the average and maximum transaction
         schedule lag time are reported in ms.  This is the delay between
         the original scheduled transaction time and the actual transaction
diff --git a/doc/src/sgml/ref/select.sgml b/doc/src/sgml/ref/select.sgml
index 42cfc28a5e..e603b7644e 100644
--- a/doc/src/sgml/ref/select.sgml
+++ b/doc/src/sgml/ref/select.sgml
@@ -376,7 +376,7 @@ TABLE [ ONLY ] <replaceable class="parameter">table_name</replaceable> [ * ]
         For example:
 <programlisting>
 SELECT * FROM unnest(ARRAY['a','b','c','d','e','f']) WITH ORDINALITY;
- unnest | ordinality 
+ unnest | ordinality
 --------+----------
  a      |        1
  b      |        2
diff --git a/doc/src/sgml/sources.sgml b/doc/src/sgml/sources.sgml
index 61ab9325c9..881b0c31a7 100644
--- a/doc/src/sgml/sources.sgml
+++ b/doc/src/sgml/sources.sgml
@@ -148,7 +148,7 @@ ereport(ERROR,
     function and does not return to the caller. If the severity level is
     lower than <literal>ERROR</>, <function>ereport</> returns normally.
    </para>
-    
+
    <para>
     The available auxiliary routines for <function>ereport</> are:
   <itemizedlist>
diff --git a/doc/src/sgml/syntax.sgml b/doc/src/sgml/syntax.sgml
index 435709a8d4..4f50f43147 100644
--- a/doc/src/sgml/syntax.sgml
+++ b/doc/src/sgml/syntax.sgml
@@ -1620,7 +1620,7 @@ SELECT
     count(*) AS unfiltered,
     count(*) FILTER (WHERE i < 5) AS filtered
 FROM generate_series(1,10) AS s(i);
- unfiltered | filtered 
+ unfiltered | filtered
 ------------+----------
          10 |        4
 (1 row)