Trivial changes: whitespace and modes.

Remote whitespace at the ends of lines.
Remove blank lines from the ends of files.
Change modes on source files so that they
are not executable.

Signed-off-by: Dan Cross <cross@gajendra.net>

src/cmd/svgpic/arcgen.c

@@ -221,4 +221,3 @@ quadrant(double x, double y)
 	else if( x> 0.0 && y<=0.0) return(4);
 	else			   return 0;	/* shut up lint */
 }
-

src/cmd/svgpic/linegen.c

@@ -225,7 +225,7 @@ obj *linegen(int type)
 			extreme(ex, ey);
 			nx = xi; ny = yi;
 		}
-			
+
 	}
 	p->o_ddval = ddval;
 	if (dbg) {

src/cmd/svgpic/misc.c

@@ -34,7 +34,7 @@ curdir(void)	/* convert current dir (hvmode) to RIGHT, LEFT, etc. */
 	return 0;
 }
 
-double 
+double
 getcomp(obj *p, int t)	/* return component of a position */
 {
 	switch (t) {

src/cmd/svgpic/plsvg.c

@@ -232,7 +232,7 @@ void arrow(double x0, double y0, double x1, double y1, double w, double h,
 		if(i == 1)
 			printf("M %.3f %.3f L %.3f %.3f", xconv(x1+dx), yconv(y1+dy), xconv(x1), yconv(y1));
 		else
-			printf(" L %.3f %.3f", xconv(x1+dx), yconv(y1+dy)); 
+			printf(" L %.3f %.3f", xconv(x1+dx), yconv(y1+dy));
 	}
 	if (nhead > 2)
 		printf(" Z");