added tests for pcp -t -I $file determination mode

tests/bart.pub

@@ -1,36 +1,36 @@
 ----- BEGIN PCP PUBLIC KEY -----
-  Generated by: Pretty Curved Privacy Version 0.1.4
+  Generated by: Pretty Curved Privacy Version 0.1.5
         Cipher: CURVE25519-ED25519-SALSA20-POLY1305
          Owner: Bart
           Mail: bart@local
-        Key-ID: 0x18D6E9A19F3A2864
-    Public-Key: 1bm}!!r%)*BFZGzmlW^ojoLwt^p-bht=dU+mvB}{ASu7t
- Creation Time: 2013-11-10T14:32:01
-      Checksum: A0:02:57:DA:BF:34:69:E5:63:E9:DD:33:03:68:1A:CC
-                C0:C8:7B:00:36:37:BF:81:3E:94:7A:3F:22:C5:AC:74
- Serial Number: 0x705FA77F
+        Key-ID: 0x9E10052F7813BB61
+    Public-Key: 1o5w-+a:}aOe..:ie8#FXylr@Fq?C)R^LR%G)KB.b(^]B
+ Creation Time: 2013-11-12T19:37:58
+      Checksum: 45:FE:04:C5:C0:DE:4A:87:FC:CF:4E:C0:68:26:98:75
+                7F:F0:01:EC:5D:A3:2C:5C:FD:20:36:0B:1B:2B:6C:45
+ Serial Number: 0x135F07C1
    Key Version: 0x00000003
  Random Art ID: +----------------+
-                |     ooo .      |
-                |  . = ...       |
-                | ..+.           |
-                |.o . . .        |
-                |o     . o       |
-                |       .        |
                 |                |
                 |                |
+                |        .       |
+                |       o        |
+                | . .  . o       |
+                |  +  . +        |
+                |   +. o o       |
+                |  ooo.   o.     |
                 +----------------+
 
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 ------ END PCP PUBLICKEY ------