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plot: don't put newline in sysfatal()

--- a/sys/src/cmd/plot/libplot/machdep.c

+++ b/sys/src/cmd/plot/libplot/machdep.c

@@ -119,7 +119,7 @@

 /////	einit(Emouse);

 	offscreen = allocimage(display, insetrect(screen->r, 4), screen->chan, 0, -1);

 	if(offscreen == nil)

-		sysfatal("Can't double buffer\n");

+		sysfatal("Can't double buffer");

 	clipminx = mapminx = screen->r.min.x+4;

 	clipminy = mapminy = screen->r.min.y+4;

 	clipmaxx = mapmaxx = screen->r.max.x-5;

--- a/sys/src/cmd/plot/plot.c

+++ b/sys/src/cmd/plot/plot.c

@@ -157,7 +157,7 @@

 eresized(int new)

 {

 	if(new && getwindow(display, Refnone) < 0)

-		sysfatal("plot: can't reattach to window: %r\n");

+		sysfatal("plot: can't reattach to window: %r");

 //	resizeto((Point){Dx(offscreen->r)+4, Dy(offscreen->r)+4});

 	m_swapbuf();

 }

@@ -408,7 +408,7 @@

 		}while(strchr(" \t\n", c) || c!='.' && c!='+' && c!='-' && ispunct(c));

 		fsp->peekc=c;

 		if(!numstring())

-			sysfatal("%s:%d: number expected\n", fsp->name, fsp->lineno);

+			sysfatal("%s:%d: number expected", fsp->name, fsp->lineno);

 		x[i]=atof(argstr)*fsp->scale;

 	}

 }

@@ -525,7 +525,7 @@

 			fsp->peekc=c;

 		}

 		if(!pplots)

-			sysfatal("%s:%d: no command\n", fsp->name, fsp->lineno);

+			sysfatal("%s:%d: no command", fsp->name, fsp->lineno);

 		switch(pplots-plots){

 		case ARC:	numargs(7); rarc(x[0],x[1],x[2],x[3],x[4],x[5],x[6]); break;

 		case BOX:	numargs(4); box(x[0], x[1], x[2], x[3]); break;

@@ -564,7 +564,7 @@

 		case TEXT:	strarg();   text(argstr); pplots=0; break;

 		case VEC:	numargs(2); vec(x[0], x[1]); break;

 		default:

-			sysfatal("%s:%d: plot: missing case %zd\n", fsp->name, fsp->lineno, pplots-plots);

+			sysfatal("%s:%d: plot: missing case %zd", fsp->name, fsp->lineno, pplots-plots);

 		}

 	}

 	return 1;

@@ -582,7 +582,7 @@

 	ap = a;

 	while(isalpha(*ap))ap++;

 	if(ap == a)

-		sysfatal("plot: no name with define\n");

+		sysfatal("plot: no name with define");

 	i = ap - a;

 	if(names+i+1 > enames){

 		names = malloc((unsigned)512);

-- 

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