Issue #27076: Doc, comment and tests spelling fixes
Most fixes to Doc/ and Lib/ directories by Ville Skyttä.
diff --git a/configure b/configure
index 1823d14..3216ad7 100755
--- a/configure
+++ b/configure
@@ -3496,7 +3496,7 @@
#
# SGI compilers allow the specification of the both the ABI and the
# ISA on the command line. Depending on the values of these switches,
-# different and often incompatable code will be generated.
+# different and often incompatible code will be generated.
#
# The SGI_ABI variable can be used to modify the CC and LDFLAGS and
# thus supply support for various ABI/ISA combinations. The MACHDEP