[Fix] nvm_resolve_local_alias: avoid using variable as printf format string

Using a variable as the format string means `%` characters in alias names would be interpreted as format specifiers.
Use `%b` format with the variable as an argument to safely interpret `\n` escapes.

Bug introduced in https://github.com/nvm-sh/nvm/commit/9b91734f0b6a210f0c6655b0cd25ea288d9ae376.

nvm.sh

@@ -1368,7 +1368,7 @@ nvm_resolve_alias() {
       break
     fi
 
-    if command printf "${SEEN_ALIASES}" | nvm_grep -q -e "^${ALIAS_TEMP}$"; then
+    if command printf '%b' "${SEEN_ALIASES}" | nvm_grep -q -e "^${ALIAS_TEMP}$"; then
       ALIAS="∞"
       break
     fi

test/fast/Aliases/percent in alias name/nvm_resolve_alias

@@ -0,0 +1,17 @@
+#!/bin/sh
+\. ../../../common.sh
+
+die () { echo "$@" ; exit 1; }
+
+: nvm.sh
+\. ../../../../nvm.sh
+
+# An alias whose name contains % should resolve directly
+try nvm_resolve_alias 'test-%s-alias'
+[ "$CAPTURED_EXIT_CODE" = "0" ] || die "nvm_resolve_alias test-%s-alias failed with exit code $CAPTURED_EXIT_CODE"
+[ "$CAPTURED_STDOUT" = "v0.0.1" ] || die "nvm_resolve_alias test-%s-alias was not v0.0.1; got $CAPTURED_STDOUT"
+
+# An alias chain that passes through a %-containing alias name should resolve
+try nvm_resolve_alias test-pct-chain
+[ "$CAPTURED_EXIT_CODE" = "0" ] || die "nvm_resolve_alias test-pct-chain failed with exit code $CAPTURED_EXIT_CODE"
+[ "$CAPTURED_STDOUT" = "v0.0.1" ] || die "nvm_resolve_alias test-pct-chain was not v0.0.1; got $CAPTURED_STDOUT"

test/fast/Aliases/percent in alias name/nvm_resolve_local_alias

@@ -0,0 +1,17 @@
+#!/bin/sh
+\. ../../../common.sh
+
+die () { echo "$@" ; exit 1; }
+
+: nvm.sh
+\. ../../../../nvm.sh
+
+# An alias whose name contains % should resolve directly
+try nvm_resolve_local_alias 'test-%s-alias'
+[ "$CAPTURED_EXIT_CODE" = "0" ] || die "nvm_resolve_local_alias test-%s-alias failed with exit code $CAPTURED_EXIT_CODE"
+[ "$CAPTURED_STDOUT" = "v0.0.1" ] || die "nvm_resolve_local_alias test-%s-alias was not v0.0.1; got $CAPTURED_STDOUT"
+
+# An alias chain that passes through a %-containing alias name should resolve
+try nvm_resolve_local_alias test-pct-chain
+[ "$CAPTURED_EXIT_CODE" = "0" ] || die "nvm_resolve_local_alias test-pct-chain failed with exit code $CAPTURED_EXIT_CODE"
+[ "$CAPTURED_STDOUT" = "v0.0.1" ] || die "nvm_resolve_local_alias test-pct-chain was not v0.0.1; got $CAPTURED_STDOUT"

test/fast/Aliases/percent in alias name/setup

@@ -0,0 +1,4 @@
+#!/bin/sh
+
+echo v0.0.1 > ../../../../alias/test-%s-alias
+echo test-%s-alias > ../../../../alias/test-pct-chain

test/fast/Aliases/percent in alias name/teardown

@@ -0,0 +1,4 @@
+#!/bin/sh
+
+rm -f ../../../../alias/test-%s-alias
+rm -f ../../../../alias/test-pct-chain