Turn on strictures for some installer Perl modules.

solenv/bin/modules/installer/copyproject.pm

@@ -27,6 +27,9 @@
 
 package installer::copyproject;
 
+use strict;
+use warnings;
+
 use installer::control;
 use installer::converter;
 use installer::files;

solenv/bin/modules/installer/exiter.pm

@@ -27,6 +27,9 @@
 
 package installer::exiter;
 
+use strict;
+use warnings;
+
 use installer::files;
 use installer::globals;
 use installer::logger;

solenv/bin/modules/installer/files.pm

@@ -27,6 +27,9 @@
 
 package installer::files;
 
+use strict;
+use warnings;
+
 use installer::exiter;
 use installer::logger;
 
@@ -58,7 +61,7 @@ sub read_file
 #   Don't use "my @localfile = <IN>" here, because
 #   perl has a problem with the internal "large_and_huge_malloc" function
 #   when calling perl using MacOS 10.5 with a perl built with MacOS 10.4
-    while ( $line = <IN> ) {
+    while ( my $line = <IN> ) {
         push @localfile, $line;
     }
 

solenv/bin/modules/installer/logger.pm

@@ -27,6 +27,9 @@
 
 package installer::logger;
 
+use strict;
+use warnings;
+
 use installer::files;
 use installer::globals;