Don't replace | with hyphens

I went a bit overboard in #603. The vertical bar
is too common, and this usage to specialized to
do it by default. To enable this, we should rather
make log attrs tweakable.

We still replace hyphenation points with hyphens.

Fixes: #630

pango/break.c

@@ -1624,8 +1624,7 @@ default_break (const char    *text,
         else
           attrs[i].break_inserts_hyphen = insert_hyphens;
 
-        if (prev_wc == 0x007C ||   /* Vertical Line */
-            prev_wc == 0x2027)     /* Hyphenation point */
+        if (prev_wc == 0x2027)     /* Hyphenation point */
           {
             attrs[i].break_inserts_hyphen = TRUE;
             attrs[i].break_removes_preceding = TRUE;

tests/breaks/sixteen.expected

@@ -4,4 +4,4 @@ Whitespace:                               x                             w
 Sentences:  bs                                                          e       b 
 Words:      bs   e s        be bs         be   bs                       be      b 
 Graphemes:  b  b b b  b b b b  b  b b b b b    b  b b b b      b  b b b b       b 
-Hyphens:       i   ri i i i    ri i i i i         i i i        i  i i i           
+Hyphens:       i   ri i i i       i i i i         i i i        i  i i i           

tests/layouts/valid-17.expected

@@ -28,7 +28,7 @@ i=3, index=17, paragraph-start=1, dir=ltr ''
 
 --- runs
 
-i=1, index=0, chars=13, level=0, gravity=south, flags=4, font=OMITTED, script=latin, language=en-us, 'some|bla|bla|'
+i=1, index=0, chars=13, level=0, gravity=south, flags=0, font=OMITTED, script=latin, language=en-us, 'some|bla|bla|'
 i=2, index=13, no run, line end
 i=3, index=13, chars=3, level=0, gravity=south, flags=0, font=OMITTED, script=latin, language=en-us, 'bla'
 i=4, index=16, no run, line end