Make <identifier> lowercase as per CodingGuidelines

*.c part for matches with '<[A-Z]+>' (and affected test).

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/t/t0040-parse-options.sh b/t/t0040-parse-options.sh
index 2092450..ae26614 100755
--- a/t/t0040-parse-options.sh
+++ b/t/t0040-parse-options.sh
@@ -19,7 +19,7 @@
     --set23               set integer to 23
     -t <time>             get timestamp of <time>
     -L, --length <str>    get length of <str>
-    -F, --file <FILE>     set file to <FILE>
+    -F, --file <file>     set file to <file>
 
 String options
     -s, --string <string>
diff --git a/test-parse-options.c b/test-parse-options.c
index 0828592..4e3710b 100644
--- a/test-parse-options.c
+++ b/test-parse-options.c
@@ -46,7 +46,7 @@
 		OPT_DATE('t', NULL, &timestamp, "get timestamp of <time>"),
 		OPT_CALLBACK('L', "length", &integer, "str",
 			"get length of <str>", length_callback),
-		OPT_FILENAME('F', "file", &file, "set file to <FILE>"),
+		OPT_FILENAME('F', "file", &file, "set file to <file>"),
 		OPT_GROUP("String options"),
 		OPT_STRING('s', "string", &string, "string", "get a string"),
 		OPT_STRING(0, "string2", &string, "str", "get another string"),