add Gdifs, update Gdif to scope to $samfile

git/Gdif

@@ -1,2 +1,5 @@
 #!/usr/bin/env rc
-git diff
+if(~ $#samfile 0)
+	git diff
+if not
+	git diff $samfile

git/Gdifs

@@ -0,0 +1,5 @@
+#!/usr/bin/env rc
+if(~ $#samfile 0)
+	git diff --staged
+if not
+	git diff --staged $samfile

mkfile

@@ -5,12 +5,14 @@ install:V:
 	cp git/G-- $HOME/bin/G--
 	cp git/Gc $HOME/bin/Gc
 	cp git/Gdif $HOME/bin/Gdif
+	cp git/Gdifs $HOME/bin/Gdifs
 	cp git/Gdn $HOME/bin/Gdn
 	cp git/Gds $HOME/bin/Gds
 	cp git/Gf $HOME/bin/Gf
 	cp git/Gpat $HOME/bin/Gpat
 	cp git/Gst $HOME/bin/Gst
 	cp git/Gup $HOME/bin/Gup
+	cp php/Phpl $HOME/bin/Phpl
 
 clean:V:
-	rm -f $HOME/bin/G+ $HOME/bin/G++ $HOME/bin/G- $HOME/bin/G-- $HOME/bin/Gc $HOME/bin/Gdif $HOME/bin/Gdn $HOME/bin/Gds $HOME/bin/Gf $HOME/bin/Gpat $HOME/bin/Gst $HOME/bin/Gup
+	rm -f $HOME/bin/G+ $HOME/bin/G++ $HOME/bin/G- $HOME/bin/G-- $HOME/bin/Gc $HOME/bin/Gdif $HOME/bin/Gdifs $HOME/bin/Gdn $HOME/bin/Gds $HOME/bin/Gf $HOME/bin/Gpat $HOME/bin/Gst $HOME/bin/Gup $HOME/bin/Phpl

php/Phpl

@@ -0,0 +1,6 @@
+#!/usr/bin/env rc
+if(~ $#samfile 0) {
+	echo 'Phpl must be run inside acme' >[2=1]
+	exit 'no samfile'
+}
+php -l $samfile