libpq: fix typo "occurences" -> "occurrences" in tests

Dagfinn Ilmari Mannsåker, reviewed by Shubham Khanna.

Discussion: http://postgr.es/m/87le9fmi01.fsf@wibble.ilmari.org

src/interfaces/libpq/t/003_load_balance_host_list.pl

@@ -51,20 +51,20 @@ foreach my $i (1 .. 50)
 		sql => "SELECT 'connect2'");
 }
 
-my $node1_occurences = () =
+my $node1_occurrences = () =
   $node1->log_content() =~ /statement: SELECT 'connect2'/g;
-my $node2_occurences = () =
+my $node2_occurrences = () =
   $node2->log_content() =~ /statement: SELECT 'connect2'/g;
-my $node3_occurences = () =
+my $node3_occurrences = () =
   $node3->log_content() =~ /statement: SELECT 'connect2'/g;
 
-my $total_occurences =
-  $node1_occurences + $node2_occurences + $node3_occurences;
+my $total_occurrences =
+  $node1_occurrences + $node2_occurrences + $node3_occurrences;
 
-ok($node1_occurences > 1, "received at least one connection on node1");
-ok($node2_occurences > 1, "received at least one connection on node2");
-ok($node3_occurences > 1, "received at least one connection on node3");
-ok($total_occurences == 50, "received 50 connections across all nodes");
+ok($node1_occurrences > 1, "received at least one connection on node1");
+ok($node2_occurrences > 1, "received at least one connection on node2");
+ok($node3_occurrences > 1, "received at least one connection on node3");
+ok($total_occurrences == 50, "received 50 connections across all nodes");
 
 $node1->stop();
 $node2->stop();

src/interfaces/libpq/t/004_load_balance_dns.pl

@@ -101,20 +101,20 @@ foreach my $i (1 .. 50)
 		sql => "SELECT 'connect2'");
 }
 
-my $node1_occurences = () =
+my $node1_occurrences = () =
   $node1->log_content() =~ /statement: SELECT 'connect2'/g;
-my $node2_occurences = () =
+my $node2_occurrences = () =
   $node2->log_content() =~ /statement: SELECT 'connect2'/g;
-my $node3_occurences = () =
+my $node3_occurrences = () =
   $node3->log_content() =~ /statement: SELECT 'connect2'/g;
 
-my $total_occurences =
-  $node1_occurences + $node2_occurences + $node3_occurences;
+my $total_occurrences =
+  $node1_occurrences + $node2_occurrences + $node3_occurrences;
 
-ok($node1_occurences > 1, "received at least one connection on node1");
-ok($node2_occurences > 1, "received at least one connection on node2");
-ok($node3_occurences > 1, "received at least one connection on node3");
-ok($total_occurences == 50, "received 50 connections across all nodes");
+ok($node1_occurrences > 1, "received at least one connection on node1");
+ok($node2_occurrences > 1, "received at least one connection on node2");
+ok($node3_occurrences > 1, "received at least one connection on node3");
+ok($total_occurrences == 50, "received 50 connections across all nodes");
 
 $node1->stop();
 $node2->stop();