fex: handle trailing semicolons

Some .fex files (for instance those for the H6 in sunxi-boards) contain
a trailing semicolon on some lines, after the end quote of a string
value.
This confuses the parser and messes up our "make check" tests, so remove
the semicolon both in the parser, but also in the unify-fex test
conditioning tool, to make the tests pass.

Signed-off-by: Andre Przywara <osp@andrep.de>

script_fex.c

@@ -200,6 +200,10 @@ int script_parse_fex(FILE *in, const char *filename, struct script *script)
 
 		pe = rtrim(s, pe);
 
+		/* Some lines end in a trailing semicolon. */
+		if (pe > s && pe[-1] == ';')
+			*--pe = '\0';
+
 		if (pe == s || *s == ';' || *s == '#')
 			continue; /* empty */
 		if (*s == ':') {

tests/unify-fex.c

@@ -127,6 +127,10 @@ int main(int argc, char **argv)
 						sprintf(p, "\"%s\"", c);
 						free(c);
 					}
+					/* Remove a trailing semicolon. */
+					c = strchr(p, 0);
+					if (*--c == ';')
+						*c = '\0';
 				}
 			}
 		}