gitattributes: Avoid {} in filename pattern.

	* .gitattributes: Avoid {} in filename pattern.

Brace-expansion is a bash feature, not part of glob(7).

From-SVN: r277129

.gitattributes

-*.{c,C,cc,h} whitespace=indent-with-non-tab,space-before-tab,trailing-space
+# Add indent-with-non-tab to the default git whitespace warnings.
+# Note that this file doesn't support bash-style brace expansion.
+
+*.[cCh] whitespace=indent-with-non-tab,space-before-tab,trailing-space
+*.cc whitespace=indent-with-non-tab,space-before-tab,trailing-space

ChangeLog

+2019-10-17  Jason Merrill  <jason@redhat.com>
+
+	* .gitattributes: Avoid {} in filename pattern.
+
 2019-10-08  Thomas Schwinge  <thomas@codesourcery.com>
 
 	* MAINTAINERS: Add back Trevor Smigiel; move into Write After