git-gui: Avoid using the term URL when specifying repositories

Instead, 'Location' is used to label such inputs; in the Clone dialog,
'Source' and 'Target' are also introduced to further clarify the situation.
The intent is to increase GUI consistency in the case location templates
(upcoming) are used - then, other locators than URL may be used.

Signed-off-by: Petr Baudis <petr.baudis@novartis.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

lib/choose_repository.tcl

@@ -463,7 +463,7 @@ method _do_clone {} {
 	frame $w_body.args
 	pack $args -fill both
 
-	label $args.origin_l -text [mc "URL:"]
+	label $args.origin_l -text [mc "Source Location:"]
 	entry $args.origin_t \
 		-textvariable @origin_url \
 		-font font_diff \
@@ -473,7 +473,7 @@ method _do_clone {} {
 		-command [cb _open_origin]
 	grid $args.origin_l $args.origin_t $args.origin_b -sticky ew
 
-	label $args.where_l -text [mc "Directory:"]
+	label $args.where_l -text [mc "Target Directory:"]
 	entry $args.where_t \
 		-textvariable @local_path \
 		-font font_diff \

lib/remote_branch_delete.tcl

@@ -63,7 +63,7 @@ constructor dialog {} {
 		set urltype url
 	}
 	radiobutton $w.dest.url_r \
-		-text [mc "Arbitrary URL:"] \
+		-text [mc "Arbitrary Location:"] \
 		-value url \
 		-variable @urltype
 	entry $w.dest.url_t \

lib/transport.tcl

@@ -135,7 +135,7 @@ proc do_push_anywhere {} {
 		set push_urltype url
 	}
 	radiobutton $w.dest.url_r \
-		-text [mc "Arbitrary URL:"] \
+		-text [mc "Arbitrary Location:"] \
 		-value url \
 		-variable push_urltype
 	entry $w.dest.url_t \